i was trying to have a code from which i can upload the files on server via php and i got this code below from w3school but its not working can u help me with thisthanks_________________________________________________________ <?php$allowedExts = array("jpg", "jpeg", "gif", "png");$extension = end(explode(".", $_FILES["file"]["name"]));if ((($_FILES["file"]["type"] == "image/gif")|| ($_FILES["file"]["type"] == "image/jpeg")|| ($_FILES["file"]["type"] == "image/pjpeg"))&& ($_FILES["file"]["size"] < 20000))&& in_array($extension, $allowedExts)){if ($_FILES["file"]["error"]