<?php function isAjax() { return isset($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest'; } if (isAjax()) { include "lib/clsSocialLikeLocker.php"; $url = urldecode($_GET['url']); $lock_again = (int) $_GET['lock']; $oclsSocialLikeLocker = new clsSocialLikeLocker(); $array = array(); if ($lock_again == 0) { if ($url != '') { $oclsSocialLikeLocker->markAsLiked($url); $array['code'] = 1; $array['url'] = $url; } else { $array['code'] = 0; $array['url'] = $url; } } else { $oclsSocialLikeLocker->markAsLocked($url); $array['code'] = 1; $array['url'] = $url; } echo json_encode($array); }