3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace NS; use function NS\foo; use const NS\BAR; function foo() { echo BAR; } const BAR = 3; foo();
Output for 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
3

preferences:
148.22 ms | 403 KiB | 172 Q