3v4l.org

run code in 300+ PHP versions simultaneously
<?php ini_set('display_errors', '1'); base64_encode(hex2bin(md5(uniqid("", true))));
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.26, 7.3.0 - 7.3.13, 7.4.0 - 7.4.1
preferences:
125.22 ms | 403 KiB | 157 Q