Online PHP editor | output for u9qCN

Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.32, 7.2.29 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.32, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: <?php// $con = mysql_connect("localhost","fazia_newadmin","salonspa!@#") or die("Could not Connect");//mysql_select_db("fazia_newdb", $con); $con = mysql_connect("localhost","root","") or die("Could not Connect");mysql_select_db("salon", $con);extract($_REQUEST);//if(eregi("^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$", $email))//{//$regex = '/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$/'; //if (preg_match($regex, $email)) {if(filter_var($email, FILTER_VALIDATE_EMAIL)){ $sql = "select * from user where email_id='$email'"; $rsd = mysql_query($sql); $msg = mysql_num_rows($rsd); echo $msg; } else { echo "invalid"; } //echo $msg;//returns 0 if not already exist ?>
Output for 8.0.13: Fatal error: Uncaught Error: Undefined constant "php" in /in/u9qCN:1 Stack trace: #0 {main} thrown in /in/u9qCN on line 1
Process exited with code 255.
Output for 7.2.0 - 7.2.13, 7.3.0 - 7.3.1, 7.3.32 - 7.3.33, 7.4.33: Warning: Use of undefined constant php - assumed 'php' (this will throw an Error in a future version of PHP) in /in/u9qCN on line 1
Output for 5.4.34 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25: Notice: Use of undefined constant php - assumed 'php' in /in/u9qCN on line 1