3v4l.org

run code in 300+ PHP versions simultaneously
<?php if($_SERVER['REQUEST_METHOD']=="POST") { if( trim($_POST['voorletters'])=="" || trim($_POST['achternaam'])=="" || trim($_POST['email'])=="") { echo "De voorletters, achternaam of e-mailadres is niet ingevuld. Controleer je invoer opnieuw."; } else { // alles is goed ingevuld, de boel kan gemaild worden } }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined array key "REQUEST_METHOD" in /in/dT9QH on line 2
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined index: REQUEST_METHOD in /in/dT9QH on line 2
Output for 7.3.32 - 7.3.33
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
Notice: Undefined index: REQUEST_METHOD in /in/dT9QH on line 2
preferences:
325.13 ms | 402 KiB | 459 Q