3v4l.org

run code in 300+ PHP versions simultaneously
<?php $who = "World"; $str = sprintf("Hello, %s!", $who); echo $str, "\n";
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.27, 8.3.0 - 8.3.16, 8.4.1 - 8.4.3
Hello, World!

preferences:
40.75 ms | 406 KiB | 5 Q