• 0

[PHP] Post form checkboxes and text


Question

I have this html form:

 
<form action="" method="POST">
0<input type="text" name="name-txt[]" /><input type="checkbox" name="chbox[]"/><br/>
1<input type="text" name="name-txt[]" /><input type="checkbox" name="chbox[]"/><br/>
2<input type="text" name="name-txt[]" /><input type="checkbox" name="chbox[]"/><br/>
3<input type="text" name="name-txt[]" /><input type="checkbox" name="chbox[]"/><br/>
4<input type="text" name="name-txt[]" /><input type="checkbox" name="chbox[]"/><br/>
5<input type="text" name="name-txt[]" /><input type="checkbox" name="chbox[]"/><br/>
6<input type="text" name="name-txt[]" /><input type="checkbox" name="chbox[]"/><br/>
<input type="submit" name="submit" value="submit"/>
</form>

PHP CODE:

<?php
if(isset($_POST['submit'])){
$txt = $_POST['name-txt'];
$chk = $_POST['chbox'];


print_r($chk);

}

?>

i want to list all check boxes checked and unchecked like this
if i checkbox 1
will returns me 
array(
      [0] => on
)

but when i checkbox 5 will return me the same array key[0] => on so how can i do it like this (like text fields):
if i checkbox 2,3,6

array(
      [0] => 
      [1] => 
      [2] => on
      [3] => on
      [4] =>
      [5] =>
      [6] => on
)

thanks alot.

Link to comment
https://www.neowin.net/forum/topic/1171197-php-post-form-checkboxes-and-text/
Share on other sites

5 answers to this question

Recommended Posts

  • 0

Checkboxes that are unchecked never get sent to the server, a common (albeit ugly) way to workaround this is to add an additional hidden control with the same name containing a default value, if the checkbox is ticked, that value will be overwritten, i.e:
 

<form action="" method="POST">
0<input type="text" name="name-txt[]" /><input type="hidden" name="chbox[0]" value="" /><input type="checkbox" name="chbox[0]" /><br/>
1<input type="text" name="name-txt[]" /><input type="hidden" name="chbox[1]" value="" /><input type="checkbox" name="chbox[1]"/><br/>
2<input type="text" name="name-txt[]" /><input type="hidden" name="chbox[2]" value="" /><input type="checkbox" name="chbox[2]"/><br/>
3<input type="text" name="name-txt[]" /><input type="hidden" name="chbox[3]" value="" /><input type="checkbox" name="chbox[3]"/><br/>
4<input type="text" name="name-txt[]" /><input type="hidden" name="chbox[4]" value="" /><input type="checkbox" name="chbox[4]"/><br/>
5<input type="text" name="name-txt[]" /><input type="hidden" name="chbox[5]" value="" /><input type="checkbox" name="chbox[5]"/><br/>
6<input type="text" name="name-txt[]" /><input type="hidden" name="chbox[6]" value="" /><input type="checkbox" name="chbox[6]"/><br/>
<input type="submit" name="submit" value="submit"/>
</form>

Then print_r($_POST['chbox']) will give, for example:

Array
(
  [0] =>
  [1] =>
  [2] =>
  [3] =>
  [4] => on
  [5] => on
  [6] =>
)

When doing this you need to add explicit indices as I've done in the example above, you can't just use chbox[]. 

 

There are various other ways to approach this depending on your use-case though, for example, give each checkbox a unique known value, and just check if (in_array(id, $_POST['chbox'])) to determine if it was checked.

This topic is now closed to further replies.
  • Posts

    • Oh no... here we go again. Tha same sh*t that happaned to Mail & Calendar...
    • I too have worked with pro gear for decades and so I found the interface to be unintuitive from both the pro and casual side (a rare "accomplishment" by what are obviously otherwise skilled coders, hehe). I eventually got it to work, thanks for offering, but I found other compatibility issues with my own use case, so I just dropped it entirely. Right now, I just use an analog line out/line in approach which works as expected across all usage scenarios. With both machines on the same power block/outlet, I'm not getting any analog hum or hiss. My next step will be to try the updated Multiplicity 4 when a bug, addressing this very issue unfortunately, is resolved. Knowing Stardock, that could be tomorrow or five years from now, so I check back every few months to see it it's fixed and I want to upgrade. Again, thanks for offering to help.
    • We recognize that performance can use some improvements, and we continue to work on improving it. However, it's worth noting that massive performance improvements don't happen overnight, they take a lot of work and effort, and in most cases, the improvements are more noticeable when you compare across several updates. That said, Files is open-source and everyone is invited to help with these efforts 🙂
    • A lot of effort has gone into improving stability and Files Preview now has a 99% crash free rate. These improvements will make their way to Files Stable when v4 is released later this year. If you're still experiencing issues, please report them on GitHub or Discord so we can track them properly.
  • Recent Achievements

    • Rookie
      Snake Doc went up a rank
      Rookie
    • First Post
      nobody9 earned a badge
      First Post
    • One Month Later
      Ricky Chan earned a badge
      One Month Later
    • First Post
      leoniDAM earned a badge
      First Post
    • Reacting Well
      Ian_ earned a badge
      Reacting Well
  • Popular Contributors

    1. 1
      +primortal
      495
    2. 2
      Michael Scrip
      203
    3. 3
      ATLien_0
      197
    4. 4
      Xenon
      137
    5. 5
      +FloatingFatMan
      115
  • Tell a friend

    Love Neowin? Tell a friend!