serialize empty array inputs

Question

Possible Duplicate:
Post the checkboxes that are unchecked

I've got a problem with serializing empty array inputs. for example:

<input type="checkbox" name="test_checkbox[]" value="test" id="test">
<input type="checkbox" name="test_checkbox[]" value="test1" id="test1">
<input type="checkbox" name="test_checkbox[]" value="test2" id="test2">

when none of these are checked and I submit the form (via POST), jQuery.serialize() excludes them and they do not appear in my $_POST/Serialized String.

But I need something like test_checkbox=0, when none is ticked.

How can I do that?

Sender · Answer 1 · 2012-09-25T10:58:30.373

0

try this way DEMO

   <form id="testform">
        <input type="checkbox" name="test_checkbox[0]" id="test" checked="checked" value="true"/>
        <input type="checkbox" name="test_checkbox[1]" id="test1" checked="checked" value="true"/>
    <span>click</span>
    </form>

script

$('span').click(function() {
    var formDate = $('#testform').serialize();
    console.log(formDate);
})

Now You Want Like This Way See DEMO

$('span').click(function() {
     var str=$('form input:not([type="checkbox"])').serialize();
    var str1=$("form input[type='checkbox']").map(function(){return this.name+"="+this.checked;}).get().join("&");
    if(str1!="" && str!="") str+="&"+str1;
    else str+=str1; 
    alert(str);
})

edited Sep 25 '12 at 10:58

answered Sep 25 '12 at 10:28

Sender

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untick the checkboxes and I get console log "empty string". thats not what I wanted :) – Martin Broder Sep 25 '12 at 10:49
now check this [DEMO](http://jsfiddle.net/efJBm/2/) – Sender Sep 25 '12 at 10:59
Try this way also [FIDDLE](http://jsfiddle.net/rgZgH/) – Sender Sep 25 '12 at 11:10

score 0 · Accepted Answer · answered Sep 25 '12 at 10:36

Simply inserting this in your server code

$_POST['test_checkbox'] = isset($_POST['test_checkbox']) ? $_POST['test_checkbox'] : 0;

Would leave you with the $_POST['test_checkbox'] variable set to 0 if none of them was set by the client. I'd recommend using a new variable instead of resetting the entry in $_POST, though.

serialize empty array inputs

2 Answers2