3v4l.org

run code in 300+ PHP versions simultaneously
<?php if(isset($_POST["submit"])){ if($_POST['formsend']==1){ if($_POST["user"]!="" && $_POST["email"]!="" && $_POST["message"]!=""){ $file=fopen("database.txt","a+"); fwrite($file,$_POST["user"]." ".$_POST["email"]." ".$POST["message"]."\r\n"); fclose($file); } } }
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 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
preferences:
260.99 ms | 405 KiB | 425 Q