WordPress.org

1. 14850842
   Member
   Posted 1 year ago #

   Hi

   I have a sign-up form on my website for membership (non wordpress membership). With the validation I want to check if the user name is unique. I have the php code to check this. But How would I get it to check with ajax.

   My problem is that I require the wordpress variables etc to locate members in the system.But when I use the Jquery.post nothing is returned or if I point the jQuery.post to a page then I get all the html.

   check.php

   if(isSet($_POST['username']))
   {
       global $wpdb;
   		$username=$_POST['username'];
       $accounts = getTableName('accounts');
       $sql = "SELECT count(*) as c from $accounts where username = %s";
       $sql = $wpdb->prepare($sql, $username);
       $count = $wpdb->get_var($sql);
       $isUnique = $count == 0;
   
   	if ($isUnique)
   	{
   		echo '<span style="color: red;">The username <b>'.$username.'</b> is already in use.</span>';
   	}
   	else
   
       echo 'OK';
   }

   JQUERY

   jQuery.ajax({
   type: "POST",
   url: "check.php",
   data: "username="+ usr,
   success: function(msg){

   How would this be possible to do..help please!!!

2. s_ha_dum (was apljdi)
   Member
   Posted 1 year ago #

   Try this: http://codex.wordpress.org/AJAX_in_Plugins

Topic Closed

This topic has been closed to new replies.