[PHP] System('wget') problem

[aexphoric]

I'm trying to download a file through php using wget. I have the wget exe in system32 and I can use it successfully over the command line but when I try to use it through php I get a 'wget' not found error as shown below.

Here's the code:

<?php 
	system('wget http://site.com/stuff.sql -O data/tmp.sql');
?>

I'm very new to php so if it's something simple don't hurt me :p

Am using Windows 7, PHP 5.3 and also IIS though I haven't show it above.

Thanks!

[.bin]

Did you try executing the command through a web application alongside apache?

Also; have you declared wget in php's variables?

[aexphoric]

I'm not using apache however if I use the code:

<?php

	  echo '<pre>';

	  system('cmd /c "dir"', $retval);

	  echo '
	  </pre>
	  <hr />Return value: ' . $retval;

?>

It shows the current directory list on the webpage and works fine =/

I will look through the php.ini file to see where I can declare wget.

[Miuku.]

Perhaps PHP doesn't inherit the system variable paths, try pointing to the absolute directory on your machine where the wget is located (and the binary name itself of course) - for example c:\my_leet_binaries\wget.exe

[aexphoric]

Have tried that too, but with no luck, have also tried putting the exe in the same folder as the php file :(

I'm really not sure what's wrong, I can even launch explorer using the system function.

[AnthonySterling]

<?php
if(false === file_exists('wget.exe'))
{
	printf(
		"I cannot find wget.exe, the current working directory is '%s'",
		getcwd()
	);
}
?>

Explorer has global scope, so there can be called regardless of the CWD.

Check your CWD using getCWD().

[aexphoric]

Ah thanks SilverBullet - I've just found that by copying the exe to the root of the C: drive it seems to all work okay.

So now I'm just wondering how do I make it so I can access the wget when it is stored in the System32 directory?

edit: I can also access print the output of the command 'Shutdown.exe -?' which is also only in System32 whereas 'wget' just won't happen :(

Edited September 9, 2009 by aexphoric

[Mike]

if you just want to get a remote file and save it, why not use file_get_contents and file_put_contents?

[-Alex-]

  aexphoric said:

Ah thanks SilverBullet - I've just found that by copying the exe to the root of the C: drive it seems to all work okay.

So now I'm just wondering how do I make it so I can access the wget when it is stored in the System32 directory?

edit: I can also access print the output of the command 'Shutdown.exe -?' which is also only in System32 whereas 'wget' just won't happen :(

Certain commands such as explorer, tasman, cmd, shutdown etc are accessible without specifying a path (as SilverBulletUK said). However wget isn't installed by default on Windows computers (I presume you've found a Linux port on the internet somewhere) so you need to specify the full path to the executable. For example instead of just doing system("wget ...."); run system("C:\WINDOWS\System32\wget.exe ....");

[aexphoric]

  Mike said:

if you just want to get a remote file and save it, why not use file_get_contents and file_put_contents?

I didn't know about them, as I said I'm new to php so I'll see what I can find out about them.

  -Alex- said:

Certain commands such as explorer, tasman, cmd, shutdown etc are accessible without specifying a path (as SilverBulletUK said). However wget isn't installed by default on Windows computers (I presume you've found a Linux port on the internet somewhere) so you need to specify the full path to the executable. For example instead of just doing system("wget ...."); run system("C:\WINDOWS\System32\wget.exe ....");

I did try that however it still could not be found, I have no idea why but it just wouldn't happen.

system('C:\Windows\System32\wget.exe http://site.com/stuff.sql -O data/tmp.sql');

Also tried with forward slashes but no luck.

In the end I just copied the binary to the directory php was installed in (c:\program files x86\PHP) and it seems to work without the file path.

However after all that, a new problem came up with deleting the tmp.sql file, can you please look at this code and tell me what's wrong? The folder in the error mentioned below has been given full permissions for IIS_IUSRS.

	if (file_exists('data/tmp.sql')) {
		unlink('data/tmp.sql');
	}

PHP Warning: unlink(data/tmp.sql) [<a href='function.unlink'>function.unlink</a>]: Permission denied in C:\inetpub\wwwroot\Test\Update.php on line 40

Thank you!