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@ 2014-01-18T15:15:32Z

<?php
$xs = new ArrayIterator(array(1, 2, 3, 4));
$ys = (array) $xs;
var_dump($ys);
$us = new EmptyIterator();
$vs = (array) $us;
var_dump($vs);

Output
Performance
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References
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var_dump: documentation ( source)

preferences:dark modelive preview

36.2 ms | 402 KiB | 5 Q