[PHP][MySQL] compare session info to db in a query

May 1, 2010

Hi,

I got a log-in script going and I have it so it sets up a new session() when it logs the user in.

i have on my index.php a session_start() that stores $_SESSION['user_id'] = $row['user_id']; and $_SESSION['username'] = $row['username'].

then in my account.php I thought of doing the samething and add to my session more information so I did another db query and tried to created my $_SESSION variables to store the extra info I wanted to pull out.

My syntax is correct, and my SQL query is correct aswell.

include 'dbc.php';
page_protect();
session_start(); 	

$row = mysql_fetch_assoc(mysql_query("SELECT company_name FROM agent_company WHERE agent_id = '{$_SESSION['user_id']}'"));

		if($row['company_name'])
		{
			$_SESSION['company_name'] = $row['company_name'];

			exit;
		}

as you can see I'm trying to pull the data by comparing that it will only pull that data that belongs to the user of the current session. I used my $_SESSION['user_id'] that was created in my index.php here.

Can I not pull session data on a new page with an existing session? or do I need to add ALL the information I want to use all in one swoop? then just access it later on when I need it...?

in my page_protect() function I have this

function page_protect() {
session_start();

//check for cookies

if(isset($_COOKIE['user_id']) &amp;&amp; isset($_COOKIE['username'])){
 	$_SESSION['user_id'] = $_COOKIE['user_id'];
 	$_SESSION['username'] = $_COOKIE['username'];
 }


if (!isset($_SESSION['user_id']))
{
header("Location: account.php");
}

3,566 · May 1, 2010

Yes, it's perfectly fine to add new data to $_SESSION. I presume that this is not working for you however...

Firstly, session_start() is being called twice, so correct that.

You mentioned that your login code sets up a new session; How are you doing this, are you sure you're not destroying the user_id and username session data?

You say that your SQL query is correct, but you've got quotes around {$_SESSION['user_id']}; Isn't the user_id a number? If so, then you shouldn't have the quotes! Also, the query would be much better with a LIMIT 1.

This code

$row = mysql_fetch_assoc(mysql_query("SELECT company_name FROM agent_company WHERE agent_id = '{$_SESSION['user_id']}'"));
if($row['company_name'])
{

is much better as follows

$res = mysql_query("SELECT company_name FROM agent_company WHERE agent_id={$_SESSION['user_id']} LIMIT 1");
if (!$res) { die('Error: ' . mysql_error()); }
if (mysql_num_rows($res) == 1)
{
        $row = mysql_fetch_assoc($res);

or if you'd rather not use mysql_num_rows() because you feel it's unnecessary, at least do

if (isset($row['company_name']))

Now, if none of the above has helped uncover the problem, we can do some trouble shooting:

1) change

$res = mysql_query("SELECT company_name FROM agent_company WHERE agent_id={$_SESSION['user_id']} LIMIT 1");

temporarily to

$sql = "SELECT company_name FROM agent_company WHERE agent_id={$_SESSION['user_id']} LIMIT 1";
echo 'sql: ' . $sql;
$res = mysql_query($sql);

and check it's as it should be

2) try var_dump($_SESSION) in various places to check what's in $_SESSION (note, sometimes easiest to view the output of it in the html source code via your browser!

May 1, 2010

hmmm, I found my problem.

I had an exit; in my IF statement... i don't why I had that in there.... its not good to be up in the wee hours of the morning doing php... *sigh*

thx for your help tho, I didn't realize I had those quotes in my user_id in my sql statement!

May 2, 2010

Hey, I have this query.... which I think is right. Can you validate for me please.

$sql = "INSERT INTO agent_settings (bannerORIGINAL, bannerTHUMB) VALUES ('$consname', '$consname2') WHERE agent_id = {$_SESSION['user_id']}" or die(mysql_error());

3,566 · May 2, 2010

Looks fine, that is apart from the fact that you're half trying to construct a string, and half trying to run a query in what you posted ;)

Btw, using the "or die()" method is often fine when trying to establish a database connection, however, when running queries you might want to use a cleaner method, e.g.

$sql = "INSERT INTO agent_settings (bannerORIGINAL, bannerTHUMB) VALUES ('$consname', '$consname2') WHERE agent_id = {$_SESSION['user_id']}";
$res = mysql_query($sql);
if (!$res) {
        echo "&lt;b&gt;Error: Problem occurred with Database Query!&lt;/b&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;MySQL Error Num:&lt;/b&gt; " . mysql_errno() . "&lt;br /&gt;&lt;b&gt;MySQL Error:&lt;/b&gt; " . mysql_error() . "\n";
} else {
        //continue
}

or, using a variable like $errorOccured could result in less nested if statements

$errorOccured = false;

$sql = "INSERT INTO agent_settings (bannerORIGINAL, bannerTHUMB) VALUES ('$consname', '$consname2') WHERE agent_id = {$_SESSION['user_id']}";
$res = mysql_query($sql);
if (!$res) {
        $errorOccured = true;
        echo "&lt;b&gt;Error: Problem occurred with Database Query!&lt;/b&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;MySQL Error Num:&lt;/b&gt; " . mysql_errno() . "&lt;br /&gt;&lt;b&gt;MySQL Error:&lt;/b&gt; " . mysql_error() . "\n";
}

if (!$errorOccured) {
        //do more stuff
}

or, functions can also help tidy code up by allowing you to jump out of them when an error has occurred

function myFunction()
{
        $sql = "INSERT INTO agent_settings (bannerORIGINAL, bannerTHUMB) VALUES ('$consname', '$consname2') WHERE agent_id = {$_SESSION['user_id']}";
        $res = mysql_query($sql);
        if (!$res) {
                echo "&lt;b&gt;Error: Problem occurred with Database Query!&lt;/b&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;MySQL Error Num:&lt;/b&gt; " . mysql_errno() . "&lt;br /&gt;&lt;b&gt;MySQL Error:&lt;/b&gt; " . mysql_error() . "\n";
                return false;
        }

        //do more stuff

        return true;
}

May 2, 2010

On 02/05/2010 at 18:27, theblazingangel said:

Looks fine, that is apart from the fact that you're half trying to construct a string, and half trying to run a query in what you posted

Btw, using the "or die()" method is often fine when trying to establish a database connection, however, when running queries you might want to use a cleaner method, e.g.

$sql = "INSERT INTO agent_settings (bannerORIGINAL, bannerTHUMB) VALUES ('$consname', '$consname2') WHERE agent_id = {$_SESSION['user_id']}";
$res = mysql_query($sql);
if (!$res) {
        echo "&lt;b&gt;Error: Problem occurred with Database Query!&lt;/b&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;MySQL Error Num:&lt;/b&gt; " . mysql_errno() . "&lt;br /&gt;&lt;b&gt;MySQL Error:&lt;/b&gt; " . mysql_error() . "\n";
} else {
        //continue
}

or, using a variable like $errorOccured could result in less nested if statements

$errorOccured = false;

$sql = "INSERT INTO agent_settings (bannerORIGINAL, bannerTHUMB) VALUES ('$consname', '$consname2') WHERE agent_id = {$_SESSION['user_id']}";
$res = mysql_query($sql);
if (!$res) {
        $errorOccured = true;
        echo "&lt;b&gt;Error: Problem occurred with Database Query!&lt;/b&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;MySQL Error Num:&lt;/b&gt; " . mysql_errno() . "&lt;br /&gt;&lt;b&gt;MySQL Error:&lt;/b&gt; " . mysql_error() . "\n";
}

if (!$errorOccured) {
        //do more stuff
}

or, functions can also help tidy code up by allowing you to jump out of them when an error has occurred

function myFunction()
{
        $sql = "INSERT INTO agent_settings (bannerORIGINAL, bannerTHUMB) VALUES ('$consname', '$consname2') WHERE agent_id = {$_SESSION['user_id']}";
        $res = mysql_query($sql);
        if (!$res) {
                echo "&lt;b&gt;Error: Problem occurred with Database Query!&lt;/b&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;MySQL Error Num:&lt;/b&gt; " . mysql_errno() . "&lt;br /&gt;&lt;b&gt;MySQL Error:&lt;/b&gt; " . mysql_error() . "\n";
                return false;
        }

        //do more stuff

        return true;
}

Well I see your point ;)

this is the block of code I have where I took my snippet from.

   $consname = "uploads/" . $username . "/images/banner/" . $image_name;
   //location to where the thumbnail image will be uploaded to
   $consname2 = "uploads/" . $username . "/images/banner/thumbs/" . $image_name;
   $copied = copy($_FILES['cons_image']['tmp_name'], $consname);
   $copied = copy($_FILES['cons_image']['tmp_name'], $consname2);
   $sql = "INSERT INTO agent_settings (bannerORIGINAL, bannerTHUMB) VALUES ('$consname', '$consname2') WHERE agent_id = {$_SESSION['user_id']}" or die(mysql_error());
   $query = mysql_query($sql)or die(mysql_error());
   //$sql="UPDATE agent_settings SET bannerORIGINAL= '$consname' WHERE agent_id={$_SESSION['user_id']}" or die(mysql_error()); //$query = mysql_query($sql)or die(mysql_error());
   //$sql="UPDATE agent_settings SET bannerTHUMB= '$consname2' WHERE agent_id= {$_SESSION['user_id']}" or die(mysql_error());
   //$query = mysql_query($sql)or die(mysql_error());
   //we verify if the image has been uploaded, and print error instead
   if (!$copied) {
    echo 'Copy unsuccessfull!';
    $errors = 1;
   }else{
    // the new thumbnail image will be placed in images/thumbs/ folder
    $thumb_name = $consname2 ;
    // call the function that will create the thumbnail. The function will get as parameters
    //the image name, the thumbnail name and the width and height desired for the thumbnail
    $thumb = make_thumb($consname, $thumb_name, WIDTH, HEIGHT);
    $thumb = make_thumb($consname, $consname, WIDTH2, HEIGHT2);
   }

May 3, 2010

Here is my entire script, maybe you can see what I'm doing wrong ={

dbc.php = my database connection function

sessions.php = where I pull all the data I need from the database and append it to a session variable

page_protect() = a function in my dbc.php that checks to see if the page is being accessed without first login in, if not then it fill redirect you to my index.php

upload.php

set_time_limit(0);
include 'dbc.php';
include 'sessions.php';
page_protect();

//define a maxim size for the uploaded images
define ("MAX_SIZE", "500");
// define the width and height for the thumbnail
// note that theese dimmensions are considered the maximum dimmension and are not fixed,
// because we have to keep the image ratio intact or it will be deformed
define ("WIDTH", "150"); //set here the width you want your thumbnail to be
define ("HEIGHT", "150"); //set here the height you want your thumbnail to be.
define ("WIDTH2", "299"); //set here the width you want your thumbnail to be
define ("HEIGHT2", "299"); //set here the height you want your thumbnail to be.
// this is the function that will create the thumbnail image from the uploaded image
// the resize will be done considering the width and
//height defined, but without deforming the image
function make_thumb($img_name, $filename, $new_w, $new_h){
	//get image extension.
	$ext = getExtension($img_name);
	//creates the new image using the appropriate function from gd library
	if(!strcmp("jpg", $ext) || !strcmp("jpeg", $ext))
		$src_img = imagecreatefromjpeg($img_name);
	if(!strcmp("png", $ext))
		$src_img = imagecreatefrompng($img_name);
	if(!strcmp("gif", $ext))
		$src_img = imagecreatefromgif($img_name);
	//gets the dimmensions of the image
	$old_x = imageSX($src_img);
	$old_y = imageSY($src_img);
	// next we will calculate the new dimmensions for the thumbnail image
	// the next steps will be taken:
	// 1. calculate the ratio by dividing the old dimmensions with the new ones
	// 2. if the ratio for the width is higher, the width will remain the one define in WIDTH variable
	// and the height will be calculated so the image ratio will not change
	// 3. otherwise we will use the height ratio for the image
	// as a result, only one of the dimmensions will be from the fixed ones
	$ratio1 = $old_x / $new_w;
	$ratio2 = $old_y / $new_h;
	if($ratio1 &gt; $ratio2) {
		$thumb_w = $new_w;
		$thumb_h = $old_y / $ratio1;
	}else{
		$thumb_h = $new_h;
		$thumb_w = $old_x / $ratio2;
	}
	// we create a new image with the new dimmensions
	$dst_img = ImageCreateTrueColor($thumb_w, $thumb_h);
	// resize the big image to the new created one
	imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $thumb_w, $thumb_h, $old_x, $old_y);
	// output the created image to the file. Now we will have the thumbnail into the file named by $filename
	if(!strcmp("png", $ext))
		imagepng($dst_img,$filename);
	else
		imagejpeg($dst_img,$filename);
	if (!strcmp("gif", $ext))
		imagegif($dst_img,$filename);
	//destroys source and destination images.
	imagedestroy($dst_img);
	imagedestroy($src_img);
}
// This function reads the extension of the file.
// It is used to determine if the file is an image by checking the extension.
function getExtension($str) {
	$i = strrpos($str, ".");
	if (!$i) { return ""; }
	$l = strlen($str) - $i;
	$ext = substr($str, $i + 1, $l);
	return $ext;
}
// This variable is used as a flag. The value is initialized with 0 (meaning no error found)
// and it will be changed to 1 if an error occures. If the error occures the file will not be uploaded.
$errors = 0;
// checks if the form has been submitted
if(isset($_POST['Submit'])) {
	//reads the name of the file the user submitted for uploading
	$image=$_FILES['cons_image']['name'];
	// if it is not empty
	if ($image) {
		// get the original name of the file from the clients machine
		$filename = stripslashes($_FILES['cons_image']['name']);
		// get the extension of the file in a lower case format
		$extension = getExtension($filename);
		$extension = strtolower($extension);
		// if it is not a known extension, we will suppose it is an error, print an error message
		// and will not upload the file, otherwise we continue
		if (($extension != "jpg") &amp;&amp; ($extension != "jpeg") &amp;&amp; ($extension != "png") &amp;&amp; ($extension != "gif")) {
			echo 'Unknown extension! Please use .gif, .jpg or .png files only.';
			$errors = 1;
		}else{
			// get the size of the image in bytes
			// $_FILES[\'image\'][\'tmp_name\'] is the temporary filename of the file in which
			//the uploaded file was stored on the server
			$size = getimagesize($_FILES['cons_image']['tmp_name']);
			$sizekb = filesize($_FILES['cons_image']['tmp_name']);
			//compare the size with the maxim size we defined and print error if bigger
			if ($sizekb &gt; MAX_SIZE*1024) {
				echo 'You have exceeded the 1MB size limit!';
				$errors = 1;
			}
			$rand = rand(0, 1000);
			//we will give an unique name, for example a random number
			$image_name = $rand . '.' . $extension;
			//the new name will be containing the full path where it will be stored (images folder)
			//location to where the original image will be uploaded to
			$consname = "uploads/" . $username . "/images/banner/" . $image_name;
			//location to where the thumbnail image will be uploaded to
			$consname2 = "uploads/" . $username . "/images/banner/thumbs/" . $image_name;
			$copied = copy($_FILES['cons_image']['tmp_name'], $consname);
			$copied = copy($_FILES['cons_image']['tmp_name'], $consname2);
			$query = "SELECT `bannerORIGINAL`, `bannerTHUMB` FROM `agent_settings` WHERE `bannerORIGINAL` AND `bannerTHUMB` NOT NULL";
			$result = mysql_query($result);
			if(!$result) {
				echo "&lt;b&gt;Error: Problem occurred with Database Query!&lt;/b&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;MySQL Error Num:&lt;/b&gt; " . mysql_errno() . "&lt;br /&gt;&lt;b&gt;MySQL Error:&lt;/b&gt; " . mysql_error() . "\n";
				$sql = "INSERT INTO agent_settings (bannerORIGINAL, bannerTHUMB) VALUES ('$consname', '$consname2') WHERE agent_id = {$_SESSION['user_id']}";
				exit(); // delete if causing problems
			}else{
				$sql="UPDATE `agent_settings` SET `bannerORIGINAL` = '$consname' WHERE `agent_id` = {$_SESSION['user_id']}" or die(mysql_error());
				$query = mysql_query($sql)or die(mysql_error());
				$sql="UPDATE `agent_settings` SET `bannerTHUMB` = '$consname2' WHERE `agent_id` = {$_SESSION['user_id']}" or die(mysql_error());
				$query = mysql_query($sql)or die(mysql_error());

				//we verify if the image has been uploaded, and print error instead
				if (!$copied) {
					echo 'Copy unsuccessfull!';
					$errors = 1;
				}else{
					// the new thumbnail image will be placed in images/thumbs/ folder
					$thumb_name = $consname2 ;
					// call the function that will create the thumbnail. The function will get as parameters
					//the image name, the thumbnail name and the width and height desired for the thumbnail
					$thumb = make_thumb($consname, $thumb_name, WIDTH, HEIGHT);
					$thumb = make_thumb($consname, $consname, WIDTH2, HEIGHT2);
				}
			}
		}
	}
}
//If no errors registred, print the success message and how the thumbnail image created
if(isset($_POST['Submit']) &amp;&amp; !$errors) {
	echo "Thumbnail created Successfully!";
	echo '&lt; img src="'.$thumb_name.'"&gt;';
	echo $lastid;
}
?&gt;
&lt;form name="newad" method="post" enctype="multipart/form-data" action=""&gt;
&lt;input type="file" name="cons_image" /&gt;
&lt;input name="Submit" type="submit" id="image1" value="Upload image" /&gt;
&lt;/form&gt;

3,566 · May 3, 2010

well, quite a bit actually :(

$result = mysql_query($result);

should be

$result = mysql_query($sql);

this:

$query = "SELECT `bannerORIGINAL`, `bannerTHUMB` FROM `agent_settings` WHERE `bannerORIGINAL` AND `bannerTHUMB` NOT NULL";

is invalid SQL, it should be

$query = "SELECT `bannerORIGINAL`, `bannerTHUMB` FROM `agent_settings` WHERE `bannerORIGINAL` NOT NULL AND `bannerTHUMB` NOT NULL";

what on earth is this line doing?:

$sql = "INSERT INTO agent_settings (bannerORIGINAL, bannerTHUMB) VALUES ('$consname', '$consname2') WHERE agent_id = {$_SESSION['user_id']}";

it's just sitting there in the middle of your error code and serves absolutely no purpose!

this query (mentioned above)

$query = "SELECT `bannerORIGINAL`, `bannerTHUMB` FROM `agent_settings` WHERE `bannerORIGINAL` AND `bannerTHUMB` NOT NULL";

seems to actually be serving no purpose at all... what are you doing with the data returned, I don't see anything...

then this

$sql="UPDATE `agent_settings` SET `bannerORIGINAL` = '$consname' WHERE `agent_id` = {$_SESSION['user_id']}" or die(mysql_error());
$query = mysql_query($sql)or die(mysql_error());
$sql="UPDATE `agent_settings` SET `bannerTHUMB` = '$consname2' WHERE `agent_id` = {$_SESSION['user_id']}" or die(mysql_error());
$query = mysql_query($sql)or die(mysql_error());

firstly the query can be combined into one!

$sql = "UPDATE `agent_settings` SET `bannerORIGINAL`='$consname', `bannerTHUMB`='$consname2' WHERE `agent_id`={$_SESSION['user_id']};";

but also, this code has not been corrected following previous advise of mine!

And that's possibly just the start... :/

May 3, 2010

*cries*

I'm just beginning my PHP and SQL havoc ;)

I'm not very good yet, but I'm starting to get the logic somewhat.

Ok let me see if I can explain my ideas here...

*ahem*

after the image manipulation and handling I was trying to add it to my database.

If the use has null in both fields bannerORIGINAL and bannerTHUMB then it will insert the url data into those fields, if it isn't null then it will update the fields.... pretty much in a nut shell...

3,566 · May 3, 2010

If a *record* that you want to modify does not exist, then you insert it, otherwise you update it. Whether or not a field is null, you just update the contents, nothing more to it... However there is a valid reason for a check here - if they are not null then it means there's an existing image that your going to want to delete after you replace it i expect...

May 3, 2010

yep, thats what I was trying to do.

if its already there meaning that the user had previously uploaded an image then just update the record to the new image the user wants to upload again.

but other than that, is my logic for my code right?... atleast? where is it that i'm going wrong in having these records created/updated?

May 3, 2010

I changed it to this... maybe it makes more sense now! ;)

			$consname = "uploads/" . $username . "/images/banner/" . $image_name;
			//location to where the thumbnail image will be uploaded to
			$consname2 = "uploads/" . $username . "/images/banner/thumbs/" . $image_name;
			$copied = copy($_FILES['cons_image']['tmp_name'], $consname);
			$copied = copy($_FILES['cons_image']['tmp_name'], $consname2);
			$query = "SELECT `bannerORIGINAL`, `bannerTHUMB` FROM `agent_settings` WHERE `bannerORIGINAL` NOT NULL AND `bannerTHUMB` NOT NULL AND `agent_id` = {$_SESSION['user_id']}";
			$result = mysql_query($query);
			if($result == 0) {
				$sql = "INSERT INTO agent_settings (bannerORIGINAL, bannerTHUMB) VALUES ('$consname', '$consname2') WHERE agent_id = {$_SESSION['user_id']}";
				mysql_query($sql);
			}else{
				$sql = "UPDATE `agent_settings` SET `bannerORIGINAL` = '$consname', `bannerTHUMB` = '$consname2' WHERE `agent_id` = {$_SESSION['user_id']}";
				$query = mysql_query($sql)or die(mysql_error());

				//we verify if the image has been uploaded, and print error instead
				if (!$copied) {
					echo 'Copy unsuccessfull!';
					$errors = 1;
				}else{
					// the new thumbnail image will be placed in images/thumbs/ folder
					$thumb_name = $consname2 ;
					// call the function that will create the thumbnail. The function will get as parameters
					//the image name, the thumbnail name and the width and height desired for the thumbnail
					$thumb = make_thumb($consname, $thumb_name, WIDTH, HEIGHT);
					$thumb = make_thumb($consname, $consname, WIDTH2, HEIGHT2);
				}
			}

May 3, 2010

Just for reference here is my latest build of the code... I knows I still have errors but I posted this in fragments as of late.

&lt;?
set_time_limit(0);
include 'dbc.php';
include 'sessions.php';
page_protect();

//define a maxim size for the uploaded images
define ("MAX_SIZE", "500");
// define the width and height for the thumbnail
// note that theese dimmensions are considered the maximum dimmension and are not fixed,
// because we have to keep the image ratio intact or it will be deformed
define ("WIDTH", "150"); //set here the width you want your thumbnail to be
define ("HEIGHT", "150"); //set here the height you want your thumbnail to be.
define ("WIDTH2", "299"); //set here the width you want your thumbnail to be
define ("HEIGHT2", "299"); //set here the height you want your thumbnail to be.
// this is the function that will create the thumbnail image from the uploaded image
// the resize will be done considering the width and
//height defined, but without deforming the image
function make_thumb($img_name, $filename, $new_w, $new_h){
	//get image extension.
	$ext = getExtension($img_name);
	//creates the new image using the appropriate function from gd library
	if(!strcmp("jpg", $ext) || !strcmp("jpeg", $ext))
		$src_img = imagecreatefromjpeg($img_name);
	if(!strcmp("png", $ext))
		$src_img = imagecreatefrompng($img_name);
	if(!strcmp("gif", $ext))
		$src_img = imagecreatefromgif($img_name);
	//gets the dimmensions of the image
	$old_x = imageSX($src_img);
	$old_y = imageSY($src_img);
	// next we will calculate the new dimmensions for the thumbnail image
	// the next steps will be taken:
	// 1. calculate the ratio by dividing the old dimmensions with the new ones
	// 2. if the ratio for the width is higher, the width will remain the one define in WIDTH variable
	// and the height will be calculated so the image ratio will not change
	// 3. otherwise we will use the height ratio for the image
	// as a result, only one of the dimmensions will be from the fixed ones
	$ratio1 = $old_x / $new_w;
	$ratio2 = $old_y / $new_h;
	if($ratio1 &gt; $ratio2) {
		$thumb_w = $new_w;
		$thumb_h = $old_y / $ratio1;
	}else{
		$thumb_h = $new_h;
		$thumb_w = $old_x / $ratio2;
	}
	// we create a new image with the new dimmensions
	$dst_img = ImageCreateTrueColor($thumb_w, $thumb_h);
	// resize the big image to the new created one
	imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $thumb_w, $thumb_h, $old_x, $old_y);
	// output the created image to the file. Now we will have the thumbnail into the file named by $filename
	if(!strcmp("png", $ext))
		imagepng($dst_img,$filename);
	else
		imagejpeg($dst_img,$filename);
	if (!strcmp("gif", $ext))
		imagegif($dst_img,$filename);
	//destroys source and destination images.
	imagedestroy($dst_img);
	imagedestroy($src_img);
}
// This function reads the extension of the file.
// It is used to determine if the file is an image by checking the extension.
function getExtension($str) {
	$i = strrpos($str, ".");
	if (!$i) { return ""; }
	$l = strlen($str) - $i;
	$ext = substr($str, $i + 1, $l);
	return $ext;
}
// This variable is used as a flag. The value is initialized with 0 (meaning no error found)
// and it will be changed to 1 if an error occures. If the error occures the file will not be uploaded.
$errors = 0;
// checks if the form has been submitted
if(isset($_POST['Submit'])) {
	//reads the name of the file the user submitted for uploading
	$image=$_FILES['cons_image']['name'];
	// if it is not empty
	if ($image) {
		// get the original name of the file from the clients machine
		$filename = stripslashes($_FILES['cons_image']['name']);
		// get the extension of the file in a lower case format
		$extension = getExtension($filename);
		$extension = strtolower($extension);
		// if it is not a known extension, we will suppose it is an error, print an error message
		// and will not upload the file, otherwise we continue
		if (($extension != "jpg") &amp;&amp; ($extension != "jpeg") &amp;&amp; ($extension != "png") &amp;&amp; ($extension != "gif")) {
			echo 'Unknown extension! Please use .gif, .jpg or .png files only.';
			$errors = 1;
		}else{
			// get the size of the image in bytes
			// $_FILES[\'image\'][\'tmp_name\'] is the temporary filename of the file in which
			//the uploaded file was stored on the server
			$size = getimagesize($_FILES['cons_image']['tmp_name']);
			$sizekb = filesize($_FILES['cons_image']['tmp_name']);
			//compare the size with the maxim size we defined and print error if bigger
			if ($sizekb &gt; MAX_SIZE*1024) {
				echo 'You have exceeded the 1MB size limit! &lt;br/&gt;';
				$errors = 1;
			}
			$rand = rand(0, 1000);
			//we will give an unique name, for example a random number
			$image_name = $rand . '.' . $extension;
			//the new name will be containing the full path where it will be stored (images folder)
			//location to where the original image will be uploaded to
			$consname = "/uploads/" . $username . "/images/banner/" . $image_name;
			//location to where the thumbnail image will be uploaded to
			$consname2 = "/uploads/" . $username . "/images/banner/thumbs/" . $image_name;
			$copied = copy($_FILES['cons_image']['tmp_name'], $consname);
			$copied = copy($_FILES['cons_image']['tmp_name'], $consname2);
			$query = "SELECT `bannerORIGINAL`, `bannerTHUMB` FROM `agent_settings` WHERE `bannerORIGINAL` IS NOT NULL AND `bannerTHUMB` IS NOT NULL AND `agent_id` = {$_SESSION['user_id']}";
			$result = mysql_query($query);
			if($result &lt; 1) {
				$sql = "INSERT INTO agent_settings (bannerORIGINAL, bannerTHUMB) VALUES ('$consname', '$consname2') WHERE agent_id = {$_SESSION['user_id']}";
				$query = mysql_query($sql);
			}else{
				$sql = "UPDATE `agent_settings` SET `bannerORIGINAL` = '$consname', `bannerTHUMB` = '$consname2' WHERE `agent_id` = {$_SESSION['user_id']}";
				$query = mysql_query($sql)or die(mysql_error());
			}
			//we verify if the image has been uploaded, and print error instead
			if (!$copied) {
				echo 'Copy unsuccessful!&lt;br /&gt;';
				echo $consname; // just checking to see if its being concatinated correctly.
				$errors = 1;
			}else{
				// the new thumbnail image will be placed in images/thumbs/ folder
				$thumb_name = $consname2 ;
				// call the function that will create the thumbnail. The function will get as parameters
				//the image name, the thumbnail name and the width and height desired for the thumbnail
				$thumb = make_thumb($consname, $thumb_name, WIDTH, HEIGHT);
				$thumb = make_thumb($consname, $consname, WIDTH2, HEIGHT2);
			}
		}
	}
}
//If no errors registred, print the success message and how the thumbnail image created
if(isset($_POST['Submit']) &amp;&amp; !$errors) {
	echo "Thumbnail created Successfully!";
	echo '&lt; img src="'.$thumb_name.'"&gt;';
	echo $lastid;
}
//echo $username;
//echo $consname;
//echo $consname2;

?&gt;
&lt;form name="newad" method="post" enctype="multipart/form-data" action=""&gt;
&lt;input type="file" name="cons_image" /&gt;
&lt;input name="Submit" type="submit" id="image1" value="Upload image" /&gt;
&lt;/form&gt;

3,566 · May 3, 2010

Okay, I've done a lot of work to tidy things up...

&lt;?

// Set default timezone (New PHP versions complain without this!)

	date_default_timezone_set("GMT");

// Common

	set_time_limit(0);

	require_once('dbc.php');
	require_once('sessions.php');

	page_protect();

// Image settings

	define('IMG_FIELD_NAME', 'cons_image');

	// Max upload size in bytes (for form)
	define ('MAX_SIZE_IN_BYTES', '512000');

	// Width and height for the thumbnail
	define ('THUMB_WIDTH', '150');
	define ('THUMB_HEIGHT', '150');

?&gt;
&lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">;html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"&gt;
&lt;head&gt;
	&lt;title&gt;whatever&lt;/title&gt;
	&lt;meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /&gt;
	&lt;style type="text\css"&gt;
		.validationErrorText { color:red; font-size:85%; font-weight:bold; }
	&lt;/style&gt;
&lt;/head&gt;
&lt;body&gt;
	&lt;h1&gt;Change image&lt;/h1&gt;
&lt;?php

$errors = array();

// Process form
if (isset($_POST['submit'])) {

	// Get filename
	$filename = stripslashes($_FILES['cons_image']['name']);

	// Validation of image file upload
	$allowedFileTypes = array('image/gif', 'image/jpg', 'image/jpeg', 'image/png');
	if ($_FILES[IMG_FIELD_NAME]['error'] == UPLOAD_ERR_NO_FILE) {

		$errors['img_empty'] = true;

	} elseif (($_FILES[IMG_FIELD_NAME]['type'] != '') &amp;&amp; (!in_array($_FILES[IMG_FIELD_NAME]['type'], $allowedFileTypes))) {

		$errors['img_type'] = true;

	} elseif (($_FILES[IMG_FIELD_NAME]['error'] == UPLOAD_ERR_INI_SIZE) || ($_FILES[IMG_FIELD_NAME]['error'] == UPLOAD_ERR_FORM_SIZE) || ($_FILES[IMG_FIELD_NAME]['size'] &gt; MAX_SIZE_IN_BYTES)) {

		$errors['img_size'] = true;

	} elseif ($_FILES[IMG_FIELD_NAME]['error'] != UPLOAD_ERR_OK) {

		$errors['img_error'] = true;

	} elseif (strlen($_FILES[IMG_FIELD_NAME]['name']) &gt; 200) {

		$errors['img_nametoolong'] = true;

	} elseif ( (file_exists(__DIR__ . "\uploads\$username\images\banner\$filename")) || (file_exists(__DIR__ . "\uploads\$username\images\banner\thumbs\$filename")) ) {

		$errors['img_fileexists'] = true;
	}

	if (! empty($errors)) { 
		unlink($_FILES[IMG_FIELD_NAME]['tmp_name']); //cleanup: delete temp file
	}

	// Create thumbnail
	if (empty($errors)) {

		// Move uploaded file to final destination
		if (! move_uploaded_file($_FILES[IMG_FIELD_NAME]['tmp_name'], "/uploads/$username/images/banner/$filename")) {
			$errors['move_source'];
			unlink($_FILES[IMG_FIELD_NAME]['tmp_name']); //cleanup: delete temp file
		} else {

			// Create thumbnail in new dir
			if (! make_thumb("/uploads/$username/images/banner/$filename", "/uploads/$username/images/banner/thumbs/$filename")) {
				$errors['thumb'];
				unlink("/uploads/$username/images/banner/$filename"); //cleanup: delete source file
			}
		}
	}

	// Record in database
	if (empty($errors)) {

		// Find existing record and delete existing images
		$sql = "SELECT `bannerORIGINAL`, `bannerTHUMB` FROM `agent_settings` WHERE (`agent_id`={$_SESSION['user_id']}) LIMIT 1";
		$result = mysql_query($sql);
		if (!$result) {
			unlink("/uploads/$username/images/banner/$filename"); //cleanup: delete source file
			unlink("/uploads/$username/images/banner/thumbs/$filename"); //cleanup: delete thumbnail file
			die("&lt;div&gt;&lt;b&gt;Error: Problem occurred with Database Query!&lt;/b&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;File:&lt;/b&gt; " . __FILE__ . "&lt;br /&gt;&lt;b&gt;Line:&lt;/b&gt; " . __LINE__ . "&lt;br /&gt;&lt;b&gt;MySQL Error Num:&lt;/b&gt; " . mysql_errno() . "&lt;br /&gt;&lt;b&gt;MySQL Error:&lt;/b&gt; " . mysql_error() . "&lt;/div&gt;");
		}
		$numResults = mysql_num_rows($result);
		if ($numResults == 1) {
			$row = mysql_fetch_assoc($result);

			// Delete old files
			unlink("/uploads/$username/images/banner/" . $row['bannerORIGINAL']); //delete OLD source file
			unlink("/uploads/$username/images/banner/thumbs/" . $row['bannerTHUMB']); //delete OLD thumbnail file
		}

		// Update/create record with new images
		if ($numResults == 1) {
			$sql = "INSERT INTO `agent_settings` (`agent_id`, `bannerORIGINAL`, `bannerTHUMB`) VALUES ({$_SESSION['user_id']}, '/uploads/$username/images/banner/$filename', '/uploads/$username/images/banner/thumbs/$filename')";
		} else {
			$sql = "UPDATE `agent_settings` SET `bannerORIGINAL`='/uploads/$username/images/banner/$filename', `bannerTHUMB`='/uploads/$username/images/banner/thumbs/$filename' WHERE (`agent_id`={$_SESSION['user_id']})";
		}
		$result = mysql_query($sql);
		if (!$result) {
			unlink("/uploads/$username/images/banner/$filename"); //cleanup: delete source file
			unlink("/uploads/$username/images/banner/thumbs/$filename"); //cleanup: delete thumbnail file
			die("&lt;div&gt;&lt;b&gt;Error: Problem occurred with Database Query!&lt;/b&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;File:&lt;/b&gt; " . __FILE__ . "&lt;br /&gt;&lt;b&gt;Line:&lt;/b&gt; " . __LINE__ . "&lt;br /&gt;&lt;b&gt;MySQL Error Num:&lt;/b&gt; " . mysql_errno() . "&lt;br /&gt;&lt;b&gt;MySQL Error:&lt;/b&gt; " . mysql_error() . "&lt;/div&gt;");
		}
        }

	// Print success message and how the thumbnail image created
	if (empty($errors)) {
	        echo "&lt;p&gt;Thumbnail created Successfully!&lt;/p&gt;\n";
        	echo "&lt;img src=\"/uploads/$username/images/banner/thumbs/$filename" alt=\"New image thumbnail\" /&gt;\n";
		echo "&lt;br /&gt;\n";
	}
}
if (isset($errors['move_source'])) { echo "\t\t&lt;div&gt;Error: Failure occurred moving uploaded source image!&lt;/div&gt;\n"; }
if (isset($errors['thumb'])) { echo "\t\t&lt;div&gt;Error: Failure occurred creating thumbnail!&lt;/div&gt;\n"; }
?&gt;
	&lt;form action="" enctype="multipart/form-data" method="post"&gt;
		&lt;input type="hidden" name="MAX_FILE_SIZE" value="&lt;?php echo MAX_SIZE_IN_BYTES; ?&gt;" /&gt;
		&lt;label for="cons_image"&gt;Image:&lt;/label&gt; &lt;input type="file" name="cons_image" id="cons_image" /&gt;
&lt;?php
if (isset($errors['img_empty'])) { echo "\t\t&lt;div class=\"validationErrorText\"&gt;Required!&lt;/div&gt;\n"; }
if (isset($errors['img_type'])) { echo "\t\t&lt;div class=\"validationErrorText\"&gt;File type not allowed! GIF/JPEG/PNG only!&lt;/div&gt;\n"; }
if (isset($errors['img_size'])) { echo "\t\t&lt;div class=\"validationErrorText\"&gt;File size too large! Maximum size should be " . MAX_SIZE_IN_BYTES . "bytes!&lt;/div&gt;\n"; }
if (isset($errors['img_error'])) { echo "\t\t&lt;div class=\"validationErrorText\"&gt;File upload error occured! Error code: {$_FILES[IMG_FIELD_NAME]['error']}&lt;/div&gt;\n"; }
if (isset($errors['img_nametoolong'])) { echo "\t\t&lt;div class=\"validationErrorText\"&gt;Filename too long! 200 Chars max!&lt;/div&gt;\n"; }
if (isset($errors['img_fileexists'])) { echo "\t\t&lt;div class=\"validationErrorText\"&gt;An image file already exists with that name!&lt;/div&gt;\n"; }
?&gt;
		&lt;br /&gt;&lt;input type="submit" name="submit" id="image1" value="Upload image" /&gt;
	&lt;/form&gt;
&lt;/body&gt;
&lt;/html&gt;
&lt;?php

#################################
#
#      F U N C T I O N S
#
#################################

/*
 *  Function: make_thumb
 *
 *  Creates the thumbnail image from the uploaded image
 *  the resize will be done considering the width and
 *  height defined, but without deforming the image
 *
 *  @param   $sourceFile   Path anf filename of source image
 *  @param   $destFile     Path and filename to save thumbnail as
 *  @param   $new_w        the new width to use
 *  @param   $new_h        the new height to use
*/
function make_thumb($sourceFile, $destFile, $new_w=false, $new_h=false)
{
	if ($new_w === false) { $new_w = THUMB_WIDTH; }
	if ($new_h === false) { $new_h = THUMB_HEIGHT; }

	// Get image extension
	$ext = strtolower(getExtension($img_name));

	// Copy source
	switch($ext) {
		case 'jpg':
		case 'jpeg':
			$img_src = imagecreatefromjpeg($sourceFile);
			break;
		case 'png':
			$img_src = imagecreatefrompng($sourceFile);
			break;
		case 'gif':
			$img_src = imagecreatefromgif($sourceFile);
			break;
		default:
			return false;
	}
	if (!$img_src) { return false; }

	// Get dimmensions of the source image
	$old_x = imageSX($src_img);
	$old_y = imageSY($src_img);

	// Calculate the new dimmensions for the thumbnail image
	// 1. calculate the ratio by dividing the old dimmensions with the new ones
	// 2. if the ratio for the width is higher, the width will remain the one define in WIDTH variable
 	//    and the height will be calculated so the image ratio will not change
	// 3. otherwise we will use the height ratio for the image
	//    as a result, only one of the dimmensions will be from the fixed ones
	$ratio1 = $old_x / $new_w;
	$ratio2 = $old_y / $new_h;
	if ($ratio1 &gt; $ratio2) {
		$thumb_w = $new_w;
		$thumb_h = $old_y / $ratio1;
	} else {
		$thumb_h = $new_h;
		$thumb_w = $old_x / $ratio2;
	}

	// Create a new image with the new dimmensions
	$dst_img = ImageCreateTrueColor($thumb_w, $thumb_h);

	// Resize the big image to the new created one
	imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $thumb_w, $thumb_h, $old_x, $old_y);

	// Output the created image to the file. Now we will have the thumbnail into the file named by $filename
	switch($ext) {
		case 'jpg':
		case 'jpeg':
			$result = imagepng($dst_img, $destFile);
			break;
		case 'png':
			$result = imagegif($dst_img, $destFile);
			break;
		case 'gif':
			$result = imagejpeg($dst_img, $destFile);
			break;
		default:
			//should never occur!
	}
	if (!$result) { return false; }

	// Destroy source and destination images
	imagedestroy($dst_img);
	imagedestroy($src_img);

	return true;
}

/*
 *  Function: getExtension
 *
 *  Returns the file extension from a given filename/path
 *
 *  @param   $str   the filename to get the extension from
*/
function getExtension($str)
{
	return pathinfo($filename, PATHINFO_EXTENSION);
}

?&gt;

There still could be issues with it, I haven't actually run the code.

One definite problem is using $_FILES['whatever']['type'] to check the filetype. The filetype specified is given by the browser, and so cannot be trusted. There is a more secure way, by using 'fileinfo', but it's only become a standard part of PHP in version 5.3, and I don't know if you have that, for some older versions an extension is available. Btw, the way you were doing it, by checking the extension, is just as bad as how I'm doing it, just because my file is called "virus.exe.jpg", does not mean it's safe!

I stripped out the code to do with creating a random name, you were simply choosing a random number from 0 to 1000, and just assuming there was no existing image with that filename. It wasn't really necessary to do any of this at all, so I got rid of it. User's images are stored within their own directory within /uploads/, and now, if an image already exists with the same filename as the new image, you'll get a warning about it and have to upload with a different filename. This behaviour could be changed however if the only images being stored are the ones we're replacing anyway.

Someone owes me a beer ;)

I hope this isn't college/uni work btw, if it is I've done far too much!

May 3, 2010

:o <- Thats my jaw dropping btw...

and no its for a personal project and my learning experience. my Uni doesn't teach PHP only ASP (*******)...

I'll check the to see if it runs, and ya if you have paypal i'll buy you a beer! ;)

May 3, 2010

hey, i was looking at the code

for the links to the folders, aren't we suppose to concatinate the variables? like

"/uploads/" . $username . "/images/banner/" . $filename

also isn 't it the same for the SQL query? so the variables could be passes correctly into the query no?

I thought it might make more sense right?

my register script has it so it makes all the tables and fields for a specific user so that the anget_id matches on all the tables with the agnet_id field in them to check against...

I ran the script and got an error with the sql query, my suspicion was that the INSERT INTO query was wrong... maybe, still get an error but it just refferes me to line 128 which is the error output line in the code

} $sql = "INSERT INTO `agent_settings` (`bannerORIGINAL`, `bannerTHUMB`) VALUES ('/uploads/$username/images/banner/$filename', '/uploads/$username/images/banner/thumbs/$filename') WHERE (`agent_id` = {$_SESSION['user_id']})";

Change image

Error: Problem occurred with Database Query!

File: /services7/webpages/util/s/a/saiya.site.aplus.net/helixagent.com/public/upload.php

Line: 128

MySQL Error Num: 1064

MySQL Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE (`agent_id` = 1)' at line 1

3,566 · May 3, 2010

On 03/05/2010 at 23:36, saiya said:
hey, i was looking at the code

for the links to the folders, aren't we suppose to concatinate the variables? like
"/uploads/" . $username . "/images/banner/" . $filename

no, if a string is enclosed in double quotes (e.g. "string", not 'string') then PHP will parse it looking for variables. Watch out though, a variable called $age in "i am $ageyrs old" will be treated as $ageyrs, and array entries cannot be accessed; To get around this, enclose in curly braces, e.g. "i am {$age}yrs old", or "i am {$userdata['age']}yrs old". Oh, for constants you must always concatenate though! (i.e. echo "i am " . MY_AGE . "yrs old"; )

On 03/05/2010 at 23:36, saiya said:
um, also I dunno if i just messed up your hard work but I changed this
} else {
                    	$sql = "UPDATE `agent_settings` SET `bannerORIGINAL`='/uploads/$username/images/banner/$filename', `bannerTHUMB`='/uploads/$username/images/banner/thumbs/$filename' WHERE (`agent_id` = {$user_id})";

that's fine, so long as $user_id exists and contains the correct userID.

On 03/05/2010 at 23:36, saiya said:
my register script has it so it makes all the tables and fields for a specific user so that the anget_id matches on all the tables with the agnet_id field in them to check against...

Sorry, what? You haven't got actual separate tables for each user do you? I think (hope) I'm just misunderstanding you, your code so far has thankfully not suggested your doing something like that.

On 03/05/2010 at 23:36, saiya said:

I ran the script and got an error with the sql query, my suspicion was that the UPDATE query was wrong... maybe, so I changed it to that, still get an error but it just refferes me to line 128 which is the error output line in the code

Yes, the line number comes from whatever line "__LINE__" is on, which, if it were to be placed on the very same line as the actual SQL query, would make the code very messy. Just use it as a guide, it tells you where the error was printed, so just look up a few lines and you'll find the SQL query the error printing code belongs to!

In this case the error is reported for line 128, so comes from SQL on line 119 or 121 (depending on the outcome of the IF statement).

I don't know what the problem is because I don't have a copy of your database and other code.

Stick

echo $sql;

after the SQL (after the if statement, so put it on line 123) and it'll display on the page the exact full sql query that's being run, this should help you figure out the cause. If you can't figure it out, i'll need the database, and perhaps all the rest of the code.

May 4, 2010

No no no

I don't have a table for each user, I have a row filed with data I'll later be using

like

usersTable

user_id, name, username, pass, etc

settingsTable

user_id, bannerOR, bannerTH, etc. <- al my settings will go here... unless you have a more simple way to organize the settings. Such as language, images for backgrounds, or css themes and such.

i just make usre that user_id from usersTable is created in a session variable to equal $user_id, i should of used that variable but i forgot I made it in my sessions.php but any ways, that $user_id should euqal user_id in the table that i'm inserting or updating into...

I'm learning, and I bet there are other more preferred methods to have multiple tables where one row belongs to a specific user and such, but for me this is how I thought I could do it...

still not getting the hand of foreing id's btw so i havne't used them....yet...

oh, I ran the INSERT INTO query in the myPHPAdmin SQL thing, and it returns an error with me manually setting {$user_id} as 1 (1 is the id of my test user).

I looked online and didn't find any errors in that query, so i'm still wondering...what the heck?!?!

oh and this is my sql for my settings table too

CREATE TABLE IF NOT EXISTS `agent_settings` (
  `agent_id` int(11) NOT NULL default '0',
  `settings_id` int(11) NOT NULL auto_increment,
  `bannerORIGINAL` text character set utf8 NOT NULL,
  `bannerTHUMB` text character set utf8 NOT NULL,
  PRIMARY KEY  (`settings_id`)
) ENGINE=MyISAM  DEFAULT CHARSET=greek AUTO_INCREMENT=4 ;

3,566 · May 4, 2010

Good good

If you only have one record in agent_settings per record in the users table, then really the data your storing in agent_settings should be stored in the users table itself, but don;t worry about that, you can work on fixing that later, you're just learning

Foreign keys, well you're already using foreign keys by including the user_id (id of the user record) in the agent_settings record. What you're not doing yet is setting up referential integrity, which means you can do stuff like: if you ever change the user_id, the id in other tables will be automatically updated to match; or if you delete the user record, all records related to it will automatically be deleted.

Note, to set this up you need your database tables to be using a 'database engine' that supports referential integrity! MySQL has several engines, MyISAM is the default and does NOT support this, you'll need to use the InnoDB engine! Note 'MyISAM' in your table creation SQL code!

As for the error, I can't tell what's causing it, and need all the rest of the code and any other tables referenced (i.e. users table) in order to figure it out.

OR, do what i said previously and stick "echo $sql;" in at line #123, then try again, it'll display the complete SQL query that's being attempted on the page, copy and paste that here for me, i should be able to figure it out from that!

Oh, note that on lines 119 and 121 you might also want to change {$_SESSION['user_id']} to {$user_id} like the other query you mentioned

May 4, 2010

On 04/05/2010 at 01:18, theblazingangel said:

Good good

If you only have one record in agent_settings per record in the users table, then really the data your storing in agent_settings should be stored in the users table itself, but don;t worry about that, you can work on fixing that later, you're just learning

Foreign keys, well you're already using foreign keys by including the user_id (id of the user record) in the agent_settings record. What you're not doing yet is setting up referential integrity, which means you can do stuff like: if you ever change the user_id, the id in other tables will be automatically updated to match; or if you delete the user record, all records related to it will automatically be deleted.

Note, to set this up you need your database tables to be using a 'database engine' that supports referential integrity! MySQL has several engines, MyISAM is the default and does NOT support this, you'll need to use the InnoDB engine! Note 'MyISAM' in your table creation SQL code!

As for the error, I can't tell what's causing it, and need all the rest of the code and any other tables referenced (i.e. users table) in order to figure it out.

OR, do what i said previously and stick "echo $sql;" in at line #123, then try again, it'll display the complete SQL query that's being attempted on the page, copy and paste that here for me, i should be able to figure it out from that!

Oh, note that on lines 119 and 121 you might also want to change {$_SESSION['user_id']} to {$user_id} like the other query you mentioned

Ya, my hosted myPHPAdmin on my host doesn't support InnoDB ;( so I'll have to make due until I can move to a dedicated server and I'll setup myPHPAdmin will all functionalities then...

hmm, ya I went and changed the session variables to my custom defined php variable. hmmm, ya it thought about that too. But I just figured if a user deletes their account or if i delete their acount, i'll run a DROP query for every row that has a field whose id matches the uers id that is being dropped... kinda repetetive but oh well, right?

Oh, well I copied your modified code and i saw that If I comment out the WHERE clause in the INSERT INTO statement that everything will follow and output as such. but um... the problem is that the file I upload isn't actually being uploaded to my server, I have set all the folders+the uploads folder to 0777 for now. still didn't work heh.

hey i made a test account

test/test

you can try login in and see how it behaves.

www.helixagent.com

when you log in, in the url go to /upload.php.

/upload2.php has the commented out WHERE clause, this one will work with no sql errors...

try to upload something and you'll see what its doing. I included the echo statements in both the INSERT and UPDATE areas.

May 4, 2010

.

3,566 · May 4, 2010

Oh hang on, I'm an idiot, you changed the insert query earlier, and I completely missed that you added a where clause to it, and why that was significant. Take the where clause off, you never need a where clause on an insert statement!

Okay, I've run the code now on my machine and corrected a few little bugs. It now correctly identifies that a problem occurred, and the code turns on PHP error reporting (probably disabled by default by your host), so we can see the errors.

&lt;?php

//Temporarily turn on error reporting
@ini_set('display_errors', 1);
error_reporting(E_ALL);

// Set default timezone (New PHP versions complain without this!)

        date_default_timezone_set("GMT");

// Common

        set_time_limit(0);

        require_once('dbc.php');
        require_once('sessions.php');

        page_protect();

// Image settings

        define('IMG_FIELD_NAME', 'cons_image');

        // Max upload size in bytes (for form)
        define ('MAX_SIZE_IN_BYTES', '512000');

        // Width and height for the thumbnail
        define ('THUMB_WIDTH', '150');
        define ('THUMB_HEIGHT', '150');

?&gt;
&lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">;html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"&gt;
&lt;head&gt;
        &lt;title&gt;whatever&lt;/title&gt;
        &lt;meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /&gt;
        &lt;style type="text\css"&gt;
                .validationerrorText { color:red; font-size:85%; font-weight:bold; }
        &lt;/style&gt;
&lt;/head&gt;
&lt;body&gt;
        &lt;h1&gt;Change image&lt;/h1&gt;
&lt;?php

$errors = array();

// Process form
if (isset($_POST['submit'])) {

        // Get filename
        $filename = stripslashes($_FILES['cons_image']['name']);
var_dump($_FILES);
        // Validation of image file upload
        $allowedFileTypes = array('image/gif', 'image/jpg', 'image/jpeg', 'image/png');
        if ($_FILES[IMG_FIELD_NAME]['error'] == UPLOAD_ERR_NO_FILE) {

                $errors['img_empty'] = true;

        } elseif (($_FILES[IMG_FIELD_NAME]['type'] != '') &amp;&amp; (!in_array($_FILES[IMG_FIELD_NAME]['type'], $allowedFileTypes))) {

                $errors['img_type'] = true;

        } elseif (($_FILES[IMG_FIELD_NAME]['error'] == UPLOAD_ERR_INI_SIZE) || ($_FILES[IMG_FIELD_NAME]['error'] == UPLOAD_ERR_FORM_SIZE) || ($_FILES[IMG_FIELD_NAME]['size'] &gt; MAX_SIZE_IN_BYTES)) {

                $errors['img_size'] = true;

        } elseif ($_FILES[IMG_FIELD_NAME]['error'] != UPLOAD_ERR_OK) {

                $errors['img_error'] = true;

        } elseif (strlen($_FILES[IMG_FIELD_NAME]['name']) &gt; 200) {

                $errors['img_nametoolong'] = true;

        } elseif ( (file_exists(__DIR__ . "\uploads\$username\images\banner\$filename")) || (file_exists(__DIR__ . "\uploads\$username\images\banner\thumbs\$filename")) ) {

                $errors['img_fileexists'] = true;
        }

        if (! empty($errors)) { 
                unlink($_FILES[IMG_FIELD_NAME]['tmp_name']); //cleanup: delete temp file
        }

        // Create thumbnail
        if (empty($errors)) {

                // Move uploaded file to final destination
                if (! move_uploaded_file($_FILES[IMG_FIELD_NAME]['tmp_name'], "/uploads/$username/images/banner/$filename")) {
                        $errors['move_source'] = true;
                        unlink($_FILES[IMG_FIELD_NAME]['tmp_name']); //cleanup: delete temp file
                } else {

                        // Create thumbnail in new dir
                        if (! make_thumb("/uploads/$username/images/banner/$filename", "/uploads/$username/images/banner/thumbs/$filename")) {
                                $errors['thumb'];
                                unlink("/uploads/$username/images/banner/$filename"); //cleanup: delete source file
                        }
                }
        }

        // Record in database
        if (empty($errors)) {

                // Find existing record and delete existing images
                $sql = "SELECT `bannerORIGINAL`, `bannerTHUMB` FROM `agent_settings` WHERE (`agent_id`={$user_id}) LIMIT 1";
                $result = mysql_query($sql);
                if (!$result) {
                        unlink("/uploads/$username/images/banner/$filename"); //cleanup: delete source file
                        unlink("/uploads/$username/images/banner/thumbs/$filename"); //cleanup: delete thumbnail file
                        die("&lt;div&gt;&lt;b&gt;Error: Problem occurred with Database Query!&lt;/b&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;File:&lt;/b&gt; " . __FILE__ . "&lt;br /&gt;&lt;b&gt;Line:&lt;/b&gt; " . __LINE__ . "&lt;br /&gt;&lt;b&gt;MySQL Error Num:&lt;/b&gt; " . mysql_errno() . "&lt;br /&gt;&lt;b&gt;MySQL Error:&lt;/b&gt; " . mysql_error() . "&lt;/div&gt;");
                }
                $numResults = mysql_num_rows($result);
                if ($numResults == 1) {
                        $row = mysql_fetch_assoc($result);

                        // Delete old files
                        unlink("/uploads/$username/images/banner/" . $row['bannerORIGINAL']); //delete OLD source file
                        unlink("/uploads/$username/images/banner/thumbs/" . $row['bannerTHUMB']); //delete OLD thumbnail file
                }

                // Update/create record with new images
                if ($numResults == 1) {
                        $sql = "INSERT INTO `agent_settings` (`agent_id`, `bannerORIGINAL`, `bannerTHUMB`) VALUES ({$user_id}, '/uploads/$username/images/banner/$filename', '/uploads/$username/images/banner/thumbs/$filename')";
                } else {
                        $sql = "UPDATE `agent_settings` SET `bannerORIGINAL`='/uploads/$username/images/banner/$filename', `bannerTHUMB`='/uploads/$username/images/banner/thumbs/$filename' WHERE (`agent_id`={$user_id})";
                }
                $result = mysql_query($sql);
                if (!$result) {
                        unlink("/uploads/$username/images/banner/$filename"); //cleanup: delete source file
                        unlink("/uploads/$username/images/banner/thumbs/$filename"); //cleanup: delete thumbnail file
                        die("&lt;div&gt;&lt;b&gt;Error: Problem occurred with Database Query!&lt;/b&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;File:&lt;/b&gt; " . __FILE__ . "&lt;br /&gt;&lt;b&gt;Line:&lt;/b&gt; " . __LINE__ . "&lt;br /&gt;&lt;b&gt;MySQL Error Num:&lt;/b&gt; " . mysql_errno() . "&lt;br /&gt;&lt;b&gt;MySQL Error:&lt;/b&gt; " . mysql_error() . "&lt;/div&gt;");
                }
        }

        // Print success message and how the thumbnail image created
        if (empty($errors)) {
                echo "&lt;p&gt;Thumbnail created Successfully!&lt;/p&gt;\n";
                echo "&lt;img src=\"/uploads/$username/images/banner/thumbs/$filename\" alt=\"New image thumbnail\" /&gt;\n";
                echo "&lt;br /&gt;\n";
        }
}
if (isset($errors['move_source'])) { echo "\t\t&lt;div&gt;Error: Failure occurred moving uploaded source image!&lt;/div&gt;\n"; }
if (isset($errors['thumb'])) { echo "\t\t&lt;div&gt;Error: Failure occurred creating thumbnail!&lt;/div&gt;\n"; }
?&gt;
        &lt;form action="" enctype="multipart/form-data" method="post"&gt;
                &lt;input type="hidden" name="MAX_FILE_SIZE" value="&lt;?php echo MAX_SIZE_IN_BYTES; ?&gt;" /&gt;
                &lt;label for="&lt;?php echo IMG_FIELD_NAME; ?&gt;"&gt;Image:&lt;/label&gt; &lt;input type="file" name="&lt;?php echo IMG_FIELD_NAME; ?&gt;" id="&lt;?php echo IMG_FIELD_NAME; ?&gt;" /&gt;
&lt;?php
if (isset($errors['img_empty'])) { echo "\t\t&lt;div class=\"validationerrorText\"&gt;Required!&lt;/div&gt;\n"; }
if (isset($errors['img_type'])) { echo "\t\t&lt;div class=\"validationerrorText\"&gt;File type not allowed! GIF/JPEG/PNG only!&lt;/div&gt;\n"; }
if (isset($errors['img_size'])) { echo "\t\t&lt;div class=\"validationerrorText\"&gt;File size too large! Maximum size should be " . MAX_SIZE_IN_BYTES . "bytes!&lt;/div&gt;\n"; }
if (isset($errors['img_error'])) { echo "\t\t&lt;div class=\"validationerrorText\"&gt;File upload error occured! Error code: {$_FILES[IMG_FIELD_NAME]['error']}&lt;/div&gt;\n"; }
if (isset($errors['img_nametoolong'])) { echo "\t\t&lt;div class=\"validationerrorText\"&gt;Filename too long! 200 Chars max!&lt;/div&gt;\n"; }
if (isset($errors['img_fileexists'])) { echo "\t\t&lt;div class=\"validationerrorText\"&gt;An image file already exists with that name!&lt;/div&gt;\n"; }
?&gt;
                &lt;br /&gt;&lt;input type="submit" name="submit" id="image1" value="Upload image" /&gt;
        &lt;/form&gt;
&lt;/body&gt;
&lt;/html&gt;
&lt;?php

#################################
#
#      F U N C T I O N S
#
#################################

/*
 *  Function: make_thumb
 *
 *  Creates the thumbnail image from the uploaded image
 *  the resize will be done considering the width and
 *  height defined, but without deforming the image
 *
 *  @param   $sourceFile   Path anf filename of source image
 *  @param   $destFile     Path and filename to save thumbnail as
 *  @param   $new_w        the new width to use
 *  @param   $new_h        the new height to use
*/
function make_thumb($sourceFile, $destFile, $new_w=false, $new_h=false)
{
        if ($new_w === false) { $new_w = THUMB_WIDTH; }
        if ($new_h === false) { $new_h = THUMB_HEIGHT; }

        // Get image extension
        $ext = strtolower(getExtension($img_name));

        // Copy source
        switch($ext) {
                case 'jpg':
                case 'jpeg':
                        $img_src = imagecreatefromjpeg($sourceFile);
                        break;
                case 'png':
                        $img_src = imagecreatefrompng($sourceFile);
                        break;
                case 'gif':
                        $img_src = imagecreatefromgif($sourceFile);
                        break;
                default:
                        return false;
        }
        if (!$img_src) { return false; }

        // Get dimmensions of the source image
        $old_x = imageSX($src_img);
        $old_y = imageSY($src_img);

        // Calculate the new dimmensions for the thumbnail image
        // 1. calculate the ratio by dividing the old dimmensions with the new ones
        // 2. if the ratio for the width is higher, the width will remain the one define in WIDTH variable
        //    and the height will be calculated so the image ratio will not change
        // 3. otherwise we will use the height ratio for the image
        //    as a result, only one of the dimmensions will be from the fixed ones
        $ratio1 = $old_x / $new_w;
        $ratio2 = $old_y / $new_h;
        if ($ratio1 &gt; $ratio2) {
                $thumb_w = $new_w;
                $thumb_h = $old_y / $ratio1;
        } else {
                $thumb_h = $new_h;
                $thumb_w = $old_x / $ratio2;
        }

        // Create a new image with the new dimmensions
        $dst_img = ImageCreateTrueColor($thumb_w, $thumb_h);

        // Resize the big image to the new created one
        imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $thumb_w, $thumb_h, $old_x, $old_y);

        // Output the created image to the file. Now we will have the thumbnail into the file named by $filename
        switch($ext) {
                case 'jpg':
                case 'jpeg':
                        $result = imagepng($dst_img, $destFile);
                        break;
                case 'png':
                        $result = imagegif($dst_img, $destFile);
                        break;
                case 'gif':
                        $result = imagejpeg($dst_img, $destFile);
                        break;
                default:
                        //should never occur!
        }
        if (!$result) { return false; }

        // Destroy source and destination images
        imagedestroy($dst_img);
        imagedestroy($src_img);

        return true;
}

/*
 *  Function: getExtension
 *
 *  Returns the file extension from a given filename/path
 *
 *  @param   $str   the filename to get the extension from
*/
function getExtension($str)
{
        return pathinfo($filename, PATHINFO_EXTENSION);
}

?&gt;

May 4, 2010

eh? no WHERE in INSERT INTO statements? that's madness!! then how is it suppose to know where to insert to?

3,529 · May 4, 2010

On 04/05/2010 at 02:26, saiya said:

eh? no WHERE in INSERT INTO statements? that's madness!! then how is it suppose to know where to insert to?

eh? There's no WHERE clause with INSERT statements; it inserts the data as a new record... :huh:

3,566 · May 4, 2010

^ precisely, in an update query, you're modifying the data in an existing record, you need to specify the ID of the record to update with a where clause else it'll replace the data in EVERY record. with insert, you're simply creating a new record in the table, so no need for a where clause, you understand... ?

a couple further fixes:

&lt;?php

//Temporarily turn on error reporting
@ini_set('display_errors', 1);
error_reporting(E_ALL);

// Set default timezone (New PHP versions complain without this!)

        date_default_timezone_set("GMT");

// Common

        set_time_limit(0);

        require_once('dbc.php');
        require_once('sessions.php');

        page_protect();

// Image settings

        define('IMG_FIELD_NAME', 'cons_image');

        // Max upload size in bytes (for form)
        define ('MAX_SIZE_IN_BYTES', '512000');

        // Width and height for the thumbnail
        define ('THUMB_WIDTH', '150');
        define ('THUMB_HEIGHT', '150');

?&gt;
&lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">;html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"&gt;
&lt;head&gt;
        &lt;title&gt;whatever&lt;/title&gt;
        &lt;meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /&gt;
        &lt;style type="text\css"&gt;
                .validationerrorText { color:red; font-size:85%; font-weight:bold; }
        &lt;/style&gt;
&lt;/head&gt;
&lt;body&gt;
        &lt;h1&gt;Change image&lt;/h1&gt;
&lt;?php

$errors = array();

// Process form
if (isset($_POST['submit'])) {

        // Get filename
        $filename = stripslashes($_FILES['cons_image']['name']);

        // Validation of image file upload
        $allowedFileTypes = array('image/gif', 'image/jpg', 'image/jpeg', 'image/png');
        if ($_FILES[IMG_FIELD_NAME]['error'] == UPLOAD_ERR_NO_FILE) {

                $errors['img_empty'] = true;

        } elseif (($_FILES[IMG_FIELD_NAME]['type'] != '') &amp;&amp; (!in_array($_FILES[IMG_FIELD_NAME]['type'], $allowedFileTypes))) {

                $errors['img_type'] = true;

        } elseif (($_FILES[IMG_FIELD_NAME]['error'] == UPLOAD_ERR_INI_SIZE) || ($_FILES[IMG_FIELD_NAME]['error'] == UPLOAD_ERR_FORM_SIZE) || ($_FILES[IMG_FIELD_NAME]['size'] &gt; MAX_SIZE_IN_BYTES)) {

                $errors['img_size'] = true;

        } elseif ($_FILES[IMG_FIELD_NAME]['error'] != UPLOAD_ERR_OK) {

                $errors['img_error'] = true;

        } elseif (strlen($_FILES[IMG_FIELD_NAME]['name']) &gt; 200) {

                $errors['img_nametoolong'] = true;

        } elseif ( (file_exists(__DIR__ . "\\uploads\\$username\\images\\banner\\$filename")) || (file_exists(__DIR__ . "\\uploads\\$username\\images\\banner\\thumbs\\$filename")) ) {

                $errors['img_fileexists'] = true;
        }

        if (! empty($errors)) { 
                unlink($_FILES[IMG_FIELD_NAME]['tmp_name']); //cleanup: delete temp file
        }

        // Create thumbnail
        if (empty($errors)) {

		// Make directory if it doesn't exist
		if ( (!is_dir("\\uploads\\$username\\images\\banner\\thumbs\\")) &amp;&amp; (!mkdir("\\uploads\\$username\\images\\banner\\thumbs\\")) ) {
                        $errors['move_source'] = true;
                        unlink($_FILES[IMG_FIELD_NAME]['tmp_name']); //cleanup: delete temp file
		} else {
	                // Move uploaded file to final destination
	                if (! move_uploaded_file($_FILES[IMG_FIELD_NAME]['tmp_name'], "/uploads/$username/images/banner/$filename")) {
        	                $errors['move_source'] = true;
                	        unlink($_FILES[IMG_FIELD_NAME]['tmp_name']); //cleanup: delete temp file
               	 } else {

	                        // Create thumbnail in new dir
        	                if (! make_thumb("/uploads/$username/images/banner/$filename", "/uploads/$username/images/banner/thumbs/$filename")) {
                	                $errors['thumb'];
                        	        unlink("/uploads/$username/images/banner/$filename"); //cleanup: delete source file
                        	}
                	}
        	}
	}

        // Record in database
        if (empty($errors)) {

                // Find existing record and delete existing images
                $sql = "SELECT `bannerORIGINAL`, `bannerTHUMB` FROM `agent_settings` WHERE (`agent_id`={$user_id}) LIMIT 1";
                $result = mysql_query($sql);
                if (!$result) {
                        unlink("/uploads/$username/images/banner/$filename"); //cleanup: delete source file
                        unlink("/uploads/$username/images/banner/thumbs/$filename"); //cleanup: delete thumbnail file
                        die("&lt;div&gt;&lt;b&gt;Error: Problem occurred with Database Query!&lt;/b&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;File:&lt;/b&gt; " . __FILE__ . "&lt;br /&gt;&lt;b&gt;Line:&lt;/b&gt; " . __LINE__ . "&lt;br /&gt;&lt;b&gt;MySQL Error Num:&lt;/b&gt; " . mysql_errno() . "&lt;br /&gt;&lt;b&gt;MySQL Error:&lt;/b&gt; " . mysql_error() . "&lt;/div&gt;");
                }
                $numResults = mysql_num_rows($result);
                if ($numResults == 1) {
                        $row = mysql_fetch_assoc($result);

                        // Delete old files
                        unlink("/uploads/$username/images/banner/" . $row['bannerORIGINAL']); //delete OLD source file
                        unlink("/uploads/$username/images/banner/thumbs/" . $row['bannerTHUMB']); //delete OLD thumbnail file
                }

                // Update/create record with new images
                if ($numResults == 1) {
                        $sql = "INSERT INTO `agent_settings` (`agent_id`, `bannerORIGINAL`, `bannerTHUMB`) VALUES ({$user_id}, '/uploads/$username/images/banner/$filename', '/uploads/$username/images/banner/thumbs/$filename')";
                } else {
                        $sql = "UPDATE `agent_settings` SET `bannerORIGINAL`='/uploads/$username/images/banner/$filename', `bannerTHUMB`='/uploads/$username/images/banner/thumbs/$filename' WHERE (`agent_id`={$user_id})";
                }
                $result = mysql_query($sql);
                if (!$result) {
                        unlink("/uploads/$username/images/banner/$filename"); //cleanup: delete source file
                        unlink("/uploads/$username/images/banner/thumbs/$filename"); //cleanup: delete thumbnail file
                        die("&lt;div&gt;&lt;b&gt;Error: Problem occurred with Database Query!&lt;/b&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;File:&lt;/b&gt; " . __FILE__ . "&lt;br /&gt;&lt;b&gt;Line:&lt;/b&gt; " . __LINE__ . "&lt;br /&gt;&lt;b&gt;MySQL Error Num:&lt;/b&gt; " . mysql_errno() . "&lt;br /&gt;&lt;b&gt;MySQL Error:&lt;/b&gt; " . mysql_error() . "&lt;/div&gt;");
                }
        }

        // Print success message and how the thumbnail image created
        if (empty($errors)) {
                echo "&lt;p&gt;Thumbnail created Successfully!&lt;/p&gt;\n";
                echo "&lt;img src=\"/uploads/$username/images/banner/thumbs/$filename\" alt=\"New image thumbnail\" /&gt;\n";
                echo "&lt;br /&gt;\n";
        }
}
if (isset($errors['move_source'])) { echo "\t\t&lt;div&gt;Error: Failure occurred moving uploaded source image!&lt;/div&gt;\n"; }
if (isset($errors['thumb'])) { echo "\t\t&lt;div&gt;Error: Failure occurred creating thumbnail!&lt;/div&gt;\n"; }
?&gt;
        &lt;form action="" enctype="multipart/form-data" method="post"&gt;
                &lt;input type="hidden" name="MAX_FILE_SIZE" value="&lt;?php echo MAX_SIZE_IN_BYTES; ?&gt;" /&gt;
                &lt;label for="&lt;?php echo IMG_FIELD_NAME; ?&gt;"&gt;Image:&lt;/label&gt; &lt;input type="file" name="&lt;?php echo IMG_FIELD_NAME; ?&gt;" id="&lt;?php echo IMG_FIELD_NAME; ?&gt;" /&gt;
&lt;?php
if (isset($errors['img_empty'])) { echo "\t\t&lt;div class=\"validationerrorText\"&gt;Required!&lt;/div&gt;\n"; }
if (isset($errors['img_type'])) { echo "\t\t&lt;div class=\"validationerrorText\"&gt;File type not allowed! GIF/JPEG/PNG only!&lt;/div&gt;\n"; }
if (isset($errors['img_size'])) { echo "\t\t&lt;div class=\"validationerrorText\"&gt;File size too large! Maximum size should be " . MAX_SIZE_IN_BYTES . "bytes!&lt;/div&gt;\n"; }
if (isset($errors['img_error'])) { echo "\t\t&lt;div class=\"validationerrorText\"&gt;File upload error occured! Error code: {$_FILES[IMG_FIELD_NAME]['error']}&lt;/div&gt;\n"; }
if (isset($errors['img_nametoolong'])) { echo "\t\t&lt;div class=\"validationerrorText\"&gt;Filename too long! 200 Chars max!&lt;/div&gt;\n"; }
if (isset($errors['img_fileexists'])) { echo "\t\t&lt;div class=\"validationerrorText\"&gt;An image file already exists with that name!&lt;/div&gt;\n"; }
?&gt;
                &lt;br /&gt;&lt;input type="submit" name="submit" id="image1" value="Upload image" /&gt;
        &lt;/form&gt;
&lt;/body&gt;
&lt;/html&gt;
&lt;?php

#################################
#
#      F U N C T I O N S
#
#################################

/*
 *  Function: make_thumb
 *
 *  Creates the thumbnail image from the uploaded image
 *  the resize will be done considering the width and
 *  height defined, but without deforming the image
 *
 *  @param   $sourceFile   Path anf filename of source image
 *  @param   $destFile     Path and filename to save thumbnail as
 *  @param   $new_w        the new width to use
 *  @param   $new_h        the new height to use
*/
function make_thumb($sourceFile, $destFile, $new_w=false, $new_h=false)
{
        if ($new_w === false) { $new_w = THUMB_WIDTH; }
        if ($new_h === false) { $new_h = THUMB_HEIGHT; }

        // Get image extension
        $ext = strtolower(getExtension($img_name));

        // Copy source
        switch($ext) {
                case 'jpg':
                case 'jpeg':
                        $img_src = imagecreatefromjpeg($sourceFile);
                        break;
                case 'png':
                        $img_src = imagecreatefrompng($sourceFile);
                        break;
                case 'gif':
                        $img_src = imagecreatefromgif($sourceFile);
                        break;
                default:
                        return false;
        }
        if (!$img_src) { return false; }

        // Get dimmensions of the source image
        $old_x = imageSX($src_img);
        $old_y = imageSY($src_img);

        // Calculate the new dimmensions for the thumbnail image
        // 1. calculate the ratio by dividing the old dimmensions with the new ones
        // 2. if the ratio for the width is higher, the width will remain the one define in WIDTH variable
        //    and the height will be calculated so the image ratio will not change
        // 3. otherwise we will use the height ratio for the image
        //    as a result, only one of the dimmensions will be from the fixed ones
        $ratio1 = $old_x / $new_w;
        $ratio2 = $old_y / $new_h;
        if ($ratio1 &gt; $ratio2) {
                $thumb_w = $new_w;
                $thumb_h = $old_y / $ratio1;
        } else {
                $thumb_h = $new_h;
                $thumb_w = $old_x / $ratio2;
        }

        // Create a new image with the new dimmensions
        $dst_img = ImageCreateTrueColor($thumb_w, $thumb_h);

        // Resize the big image to the new created one
        imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $thumb_w, $thumb_h, $old_x, $old_y);

        // Output the created image to the file. Now we will have the thumbnail into the file named by $filename
        switch($ext) {
                case 'jpg':
                case 'jpeg':
                        $result = imagepng($dst_img, $destFile);
                        break;
                case 'png':
                        $result = imagegif($dst_img, $destFile);
                        break;
                case 'gif':
                        $result = imagejpeg($dst_img, $destFile);
                        break;
                default:
                        //should never occur!
        }
        if (!$result) { return false; }

        // Destroy source and destination images
        imagedestroy($dst_img);
        imagedestroy($src_img);

        return true;
}

/*
 *  Function: getExtension
 *
 *  Returns the file extension from a given filename/path
 *
 *  @param   $str   the filename to get the extension from
*/
function getExtension($str)
{
        return pathinfo($filename, PATHINFO_EXTENSION);
}

?&gt;

i still get an error running it on my machine: Warning: mkdir(): No such file or directory in C:\Users\Lyndon\Documents\Web_Dev\ttt.php on line 94

Do you get this on the server with this new code?

Edit: Tiny fix, doesn't fix my problem though

May 4, 2010

hmm, heh well atleast I got more precise errors now... um

Notice: A session had already been started - ignoring session_start() in /services7/webpages/util/s/a/saiya.site.aplus.net/helixagent.com/public/dbc.php on line 55

Change image

array(1) { ["cons_image"]=> array(5) { ["name"]=> string(21) "15jan10jlobscvpiy.jpg" ["type"]=> string(10) "image/jpeg" ["tmp_name"]=> string(37) "/services/webdata/phpupload/php7moGL5" ["error"]=> int(0) ["size"]=> int(51941) } }

Notice: Use of undefined constant __DIR__ - assumed '__DIR__' in /services7/webpages/util/s/a/saiya.site.aplus.net/helixagent.com/public/upload.php on line 75

Warning: move_uploaded_file(/uploads/saiyanz2k/images/banner/15jan10jlobscvpiy.jpg) [function.move-uploaded-file]: failed to open stream: No such file or directory in /services7/webpages/util/s/a/saiya.site.aplus.net/helixagent.com/public/upload.php on line 88

Warning: move_uploaded_file() [function.move-uploaded-file]: Unable to move '/services/webdata/phpupload/php7moGL5' to '/uploads/saiyanz2k/images/banner/15jan10jlobscvpiy.jpg' in /services7/webpages/util/s/a/saiya.site.aplus.net/helixagent.com/public/upload.php on line 88

oh wait, with your new code it doesn't show anything, um... think something's not parsing correctly in the PHP

edit: ya check line 90... whats going on there?

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[PHP][MySQL] compare session info to db in a query

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