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run code in 300+ PHP versions simultaneously
<?php class Foo { private $foo = ["a" => 1, "b" => 2, "c" => 3, "d" => 4]; } $i = 0; $mem = memory_get_usage(); for ($i = 19999; --$i;) { $s[] = new Foo; } $mem = memory_get_usage() - $mem; echo "Memory used with static init: ", $mem, PHP_EOL; class Bar { private $bar; function __construct() { $this->bar = ["a" => 1, "b" => 2, "c" => 3, "d" => 4]; } } $mem = memory_get_usage(); for ($i = 19999; --$i;) { $f[] = new Bar; } $mem = memory_get_usage() - $mem; echo "Memory used with dynamic init: ", $mem, PHP_EOL;

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32.19 ms | 402 KiB | 5 Q