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Question

How to receive a batch of checkbox data in PHP?

Answer 1

+1 A:

You need to give them names - you can either do it like this:

<input style="float:left" type="checkbox" id="$id" name="$id" value="true">

or like this to get an array:

<input style="float:left" type="checkbox" id="$id" name="myBoxes[$id]" value="true">

You can then check isset($_POST[$id]) or isset($_POST['myBoxes'][$id])

Greg 2009-11-07 14:27:20

$id is a variable whose values are random, how can you know the values of the variable?

Steven 2009-11-07 14:30:36

If you use the myBoxes way you can `foreach ($_POST['myBoxes'] as $id => $value) { ... } `

Greg 2009-11-07 14:33:02

Can I get an element's name via its id?

Steven 2009-11-07 14:40:25

Erm how do you mean/

Greg 2009-11-07 14:50:19

Answer 2

A:

Name your checkboxes so you can easily identify them. eg

 $CheckBoxHTML =  "<input type='checkbox' name='check_$row[id]' value='YES'>Check This";

then in your recieving php file you can find all checkboxes by

foreach ($_POST as $key => $value)
{
  if (strpos($key,'check_') !== false)
  {
     list($tmp, $ID) = split('_', $key);

      $CheckedValues[] = $ID;

   } 

}

That will pull out all your checked ids.

Toby Allen 2009-11-07 14:50:07

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How to receive a batch of checkbox data in PHP?

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