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@ 2021-11-12T22:06:37Z

<?php

class Foo {
    public $bar = 1;
    public $baz = 2;
    public $qux = 3;
}

$a = [];
for ($i = 0; $i < 1000; $i++) {
    $a[] = new Foo();
}

var_dump(memory_get_usage());

foreach ($a as $o) {
    foreach ($o as $p) {}
}

var_dump(memory_get_usage());

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
memory_get_usage: documentation ( source)

preferences:dark modelive preview

40.69 ms | 402 KiB | 5 Q