Calling PHP function using ajax not working - php

Question

I am calling a php function using ajax call but its not working. I have a table with some rows when I click on any column of a row it becomes editable with its value but when I edit the value and click on another column or enter the changed value is not displayed again. Actually I am doing an ajax call where I change the data of the column in my table but its not calling that php function.
My script is as follows
<script type="text/javascript" >
$(document).ready(function()
{
$(".edit_tr").click(function()
{
var ID=$(this).attr('id');
$("#span_"+ID).hide();
$("#input_"+ID).show();
}).change(function()
{
var ID=$(this).attr('id');
var input=$("#input_"+ID).val();
var dataString = 'id='+ ID +'&data='+input;
$("#span_"+ID).html('<img src="load.gif" />'); // Loading image
if(input.length>0)
{
$.ajax({
type: "POST",
url: "worker_app::edit_ajax()",
data: dataString,
cache: false,
success: function(html)
{
$("#span_"+ID).html(span);
}
});
}
else
{
alert('Enter something.');
}
});
// Edit input box click action
$(".editbox").mouseup(function()
{
return false
});
// Outside click action
$(document).mouseup(function()
{
$(".editbox").hide();
$(".text").show();
});
});
The HTML table looks like this
<tbody>
<tr id="{IDWORKERS}" class="edit_tr">
<td class="edit_td">
<span id="span_{IDWORKERS}" class="text">{FIRM}</span>
<input type="text" value="{FIRM}" class="editbox" id="input_{IDWORKERS}" />
</td>
</tr>
</tbody>
And the php function is inside apps folder in a file called wroker_app.php
public function edit_ajax(){
///echo "<pre>";
///print_r($_POST);
//echo "</pre>";
// sql to update the database goes here
echo 'I am here';
}
Any ideas?
Thanks in advance

Answer 1

You can not call specific functions using the request alone. You need to tell your script that edit_ajax is supposed to be executed.
So change your url to worker_app.php, listen for the request using a (e.g) get variable like ?[function].
if (isset($_GET['edit_ajax']) && function_exists($_GET['edit_ajax']))
edit_ajax();

Answer 2

You cant call a php function like this. You can only call a php file where you can decide which function should be executed.
A simple example:
$.ajax({
type: "POST",
url: "/apps/worker_app.php",
data: dataString,
cache: false,
success: function(html) {
$("#span_"+ID).html(span);
}
});
And in your apps/worker_app.php:
<?php
function edit_ajax(){
echo 'I am here';
}
// You can put some logic before this line to decide which function to call based on the request
edit_ajax();

Answer 3

url: "worker_app::edit_ajax.php"
Where is this url referrs to.
check this reference
jquery .ajax
If you want to call function use try to post any specific post field to that file.
After use below in that file
if($_POST['field']!="") {
requredfunction () {
// your code run here
}
}