3v4l.org

run code in 300+ PHP versions simultaneously
<?php $baseMemory = memory_get_usage(); $array = array(); function test() { global $array; $array['test'] = 4; } echo sprintf( '%8d: ', $i ), memory_get_usage() - $baseMemory, "\n";

preferences:
35.45 ms | 402 KiB | 5 Q