3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(str_replace('','',''));
Output for 7.2.0 - 7.2.34, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 8.0.0 - 8.0.12, 8.1rc1 - rc3
string(0) ""

preferences:
42.83 ms | 460 KiB | 5 Q