jQuery Validate remote method usage to check if username already exists

by

I’ve managed to get this to work by changing the PHP technique I was using, here’s my PHP:

<?php
require_once "./source/includes/data.php";
header('Content-type: application/json');
$request = $_REQUEST['username'];

$query = mysql_query("SELECT * FROM mmh_user_info WHERE username="$username"");
$result = mysql_num_rows($query);
if ($result == 0){
$valid = 'true';}
else{
$valid = 'false';
}
echo $valid;
?>

Thanks everyone here for your help 🙂

More Related Contents:

  1. up/down voting system doesn't work when i add it to my html document
  2. How to refresh parent page after closing popup window in jQUERY? [duplicate]
  3. Is the following code valid? [closed]
  4. Using Jquery Ajax to retrieve data from Mysql
  5. jQuery UI Sortable, then write order into a database
  6. How to populate second dropdown based on selection of first dropdown using jQuery/AJAX and PHP/MySQL?
  7. HTML – Change\Update page contents without refreshing\reloading the page
  8. Inserting into MySQL from PHP (jQuery/AJAX)
  9. Sending HTML Code Through JSON
  10. Javascript function post and call php script
  11. Pass PHP variable to bootstrap modal
  12. Laravel – only a zero is saved to the database
  13. storing user_id in session variable
  14. I am seeing this error on submitting form Error: query was empty [closed]
  15. Why is mysqli giving a “Commands out of sync” error?
  16. JSON encode MySQL results
  17. PHP mysql insert date format
  18. How to store file name in database, with other info while uploading image to server using PHP?
  19. How to best store user information and user login and password
  20. PHP: Calling MySQL Stored Procedure with Both INPUT AND OUTPUT Parameters (NOT “INOUT”)
  21. PHP + MySql + Stored Procedures, how do I get access an “out” value?
  22. How to bind SQL variables in PHP?
  23. MySQL ORDER BY IN()
  24. mysql – INSERT date range into date columns IF dates don’t overlap with existing ones
  25. php password_verify() hash and pass won’t match
  26. PHP mySQL – Insert new record into table with auto-increment on primary key
  27. Create PHP array from MySQL column
  28. UNION syntax in Cakephp
  29. How do i search from serialize field in mysql database?
  30. What is the PDO equivalent of function mysql_real_escape_string?

Leave a Comment