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@ 2014-05-10T21:34:14Z

<?php

$i = (int) $a = $b = ['bwoebi'];

while($i++ < 10000) {
	$b = array_merge($b, $a);
}

Output
Performance
VLD
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array_merge: documentation ( source)

preferences:dark modelive preview

37.38 ms | 402 KiB | 5 Q