3v4l.org

run code in 300+ PHP versions simultaneously
<?php $m = memory_get_usage(); for ($i = 0; $i < 1000; $i++) { $fn = eval('return 0;'); //$fn = function ($foo) {}; var_dump(memory_get_usage() - $m); }
Output for 8.0.1 - 8.0.15, 8.1.0 - 8.1.2
int(0) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32) int(32)
Output for 7.4.0 - 7.4.27
int(56) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88) int(88)

preferences:
55.81 ms | 438 KiB | 5 Q