3v4l.org

run code in 300+ PHP versions simultaneously
<?php if (isset($_GET['user_name'])&&!empty($_GET['user_name'])) { $user_name = $_GET['user_name']; $user_name_lc = strtolower($user_name); if ($user_name_lc=='alex') { echo 'You are the best, '. $user_name; } } ?> <form action="index.php" method="GET"> Name: <input type="text" name="user_name"><br><br> <input type="Submit" value="Submit"> </form>
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 - 5.6.28, 7.0.0 - 7.0.20, 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
<form action="index.php" method="GET"> Name: <input type="text" name="user_name"><br><br> <input type="Submit" value="Submit"> </form>
preferences:
219.94 ms | 406 KiB | 371 Q