if ($user_res['user_num'] == 1) { // checking if available user and pwd $_SESSION['user'] = $uname; $sent_data = "ok"; } else { $sent_data = "Wrong user name or password"; } } return $sent_data; } } //initializing wrong data $sent_data = ""; $validate = new validator(); // checking login credentials if (isset($_POST['name']) && isset($_POST['email']) && isset($_POST['pwd'])) { $uname = mysql_real_escape_string($_POST['name']); $email = mysql_real_escape_string($_POST['email']); $pwd = mysql_real_escape_string($_POST['pwd']); $sent_data = $validate->signup($uname, $email, $pwd); } else { if (isset($_POST['user']) && isset($_POST['pwd'])) { $uname = mysql_real_escape_string($_POST['user']); $pwd = mysql_real_escape_string($_POST['pwd']); $sent_data = $validate->signin($uname, $pwd); } } echo $sent_data; ?>