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    <p>You should read more about AJAX calls, preferably with <code>.post()</code> function, and then update the data in database on the server side.</p> <p>Good luck.</p> <p>Based on the examples from <a href="http://api.jquery.com/jQuery.post/" rel="nofollow">the documentation of jQuery's .post()</a>, you can implement something like this (in JavaScript with jQuery):</p> <pre><code>var changeStatus = function(id){ $.post("updateState.php", { 'id': id } ); }; </code></pre> <p>and on the server side (eg. in updateState.php):</p> <pre><code>$id = (int)$_POST['id']; // here make some query using $id to update the state // in a manner you prefer </code></pre> <p><strong>EDIT:</strong></p> <p>But I would prefer something like that:</p> <p>1) on server side, displaying the checkbox (notice different quotes and <code>(int)</code> cast):</p> <pre><code>echo '&lt;input type="checkbox" data-state-id="' . (int)$theid . '" /&gt;'; </code></pre> <p>2) somewhere in JavaScript (see <a href="http://jsfiddle.net/bYZBy/" rel="nofollow">jsfiddle</a> as a proof):</p> <pre><code>jQuery(main_container).delegate('input[type="checkbox"][data-state-id]', 'change', function(event){ jQuery.post('update_state.php', { 'id': jQuery(this).attr('data-state-id'), 'state': jQuery(this).is(':checked') }); }); </code></pre> <p>3) somewhere on server side (in <code>update_state.php</code>):</p> <pre><code>$id = (int)$_POST['id']; $state = (bool)$_POST['state']; $query = 'UPDATE `states` SET `state`="' . $state . '" WHERE `id`="' . $id . '";'; // here execute the query, obviously adjusted to your needs </code></pre>
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    1. COexcept i guess it would be $_POST['id']...okay this looks interesting, going to try it now..
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    2. CO@Sev Yes, you are correct - I made a mistake. If you will follow the edited version, please keep in mind there may be some errors (maybe `$state` is reverted, I am not sure), but are some improvements, such as: 1) getting rid of inline JS, 2) delegating events, 3) using HTML5's _custom data_, 4) passing current state with the ID, 5) using `onchange` instead of `onclick`, 6) casting as protection from SQL Injection etc.
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    3. CO@Sev Regarding `$state` being reverted - I have checked it, it is not reverted (see [jsfiddle](http://jsfiddle.net/bYZBy/)), so you may wish to pass updated state along with the ID.
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