3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo memory_get_usage()."\n"; //$x; echo memory_get_usage()."\n";
Output for 8.0.0 - 8.0.12
385896 385928
Output for 7.4.0 - 7.4.25
386200 386232
Output for 7.3.0 - 7.3.32
386120 386152
preferences:
47.35 ms | 765 KiB | 4 Q