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@ 2014-08-25T15:48:03Z

<?php

class Foo {
	private $orig;
	public function bar() {
		$this->orig = clone $this;
	}
}

$foo = new Foo;

for ($i = 0; $i < 20; $i++) {
	$foo->bar();
	echo (memory_get_peak_usage(true) / 1024 / 1024) . "\n";
}

Output
Performance
VLD
References
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memory_get_peak_usage: documentation ( source)

preferences:dark modelive preview

35.96 ms | 402 KiB | 5 Q