Question

Hello i have a form like this:

<tr><td>First Name:</td><td><input data-check="f_n" type="text" name="first_name" /></td>
<td data-msg="f_n"></td></tr>
<tr><td>Last Name:</td><td><input data-check="l_n" type="text" name="last_name" /></td>
<td data-msg="l_n"></td></tr>

now i did a jquery $.post to connect to php to desplay a error in case is needed, so far i have this:

<script type="text/javascript">
 $(document).ready(function(){
    $('[data-check]').click(function(){
        var a = $(this).data('check');
        $.post('website/register/checks.php',, function(data){
            $('[data-msg='+ a +']').html(data);
        });
    });
 });
 </script>

I’m really confuse, on how to send the correct data according to the users input.. and show it in the correct <td></td>

Answer 1

You need to set the post data as the second parameter of $.post

$(document).ready(function(){
    $('[data-check]').click(function(){
        var a = $(this).data('check'), post_data = {};
        post_data[a] = $(this).val();
        $.post('website/register/checks.php', post_data, function(data){
            $('[data-msg='+ a +']').html(data);
        });
    });
 });