3v4l.org

run code in 300+ PHP versions simultaneously
<?php function build_array() { for ($i=0;$i<10000;$i++){ $a[$i]=$i; } $i=null; return $a; } echo memory_get_usage(false), PHP_EOL; $a = build_array(); echo memory_get_usage(false), PHP_EOL; unset($a); echo memory_get_usage(false), PHP_EOL;

preferences:
26.94 ms | 404 KiB | 5 Q