3v4l.org

run code in 500+ PHP versions simultaneously
<?php session_start(); if (isset($_POST['token'])) { $token = $_POST['token']; $_SESSION['user'] = true; } else { $_SESSION['user'] = true; } var_dump($_SESSION['user']);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
bool(true)
preferences:
92.16 ms | 1466 KiB | 4 Q