Calling PHP function using ajax not working

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

I don't know nothing happens :( I am new to ajax how can I check the ajax call ? — Faryal Khan
– Faryal Khan, Commented Mar 29, 2012 at 9:44

Daniel · Accepted Answer · 2012-03-29 09:44:46Z

2

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();

answered Mar 29, 2012 at 9:44

Daniel

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3 Comments

Daniel Over a year ago

It seems that you try to call the edit_ajax() by requesting the url /worker_app::edit_ajax.php. This is not possible. You can not call functions using the request url alone.

Faryal Khan Over a year ago

then what can I do to call a function ?

Daniel Over a year ago

Call url: '/worker_app.php?edit_ajax'. In your worker_app.php file, listen for the call by the snippet above.

erdeszt · Accepted Answer · 2012-03-29 09:51:05Z

1

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();

answered Mar 29, 2012 at 9:51

erdeszt

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14 Comments

erdeszt Over a year ago

You can write it before the function i've just copied your code and added the call.

Faryal Khan Over a year ago

I write edit_ajax(); just before my function and it is giving me a syntax error :(

erdeszt Over a year ago

Paste the error message here, but the place of the call can't be the problem

Faryal Khan Over a year ago

I set my url in the ajax call like this url: "/apps/worker_app.php", in my apps/worker_app file i have my method edit_ajax()and just before the start of this function I have edit_ajax(); The error it gives is Parse error: syntax error, unexpected T_STRING, expecting T_FUNCTION in C:\wamp\www\personal\apps\worker_app.php on line 549

erdeszt Over a year ago

Oh than you cant simply call edit_ajax() you have to call it on an instance of the class (or call the static way if it's a static function)

|

atluriajith · Accepted Answer · 2012-03-29 09:49:39Z

0

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
       } 
}

answered Mar 29, 2012 at 9:49

atluriajith

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