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@ 2014-10-15T15:28:11Z

<?php
$a1 = ['foo', 'bar'];
$a2 = $a1;
$a2[] = 'baz';
var_dump($a1, $a2);
var_dump($a1 === $a2);

Output
Performance
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References
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var_dump: documentation ( source)

preferences:dark modelive preview

36.03 ms | 402 KiB | 5 Q