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@ 2018-01-15T17:36:53Z

<?php

$it = new NoRewindIterator(new EmptyIterator);

var_dump($it->valid());

foreach ($it as $k => $v) { var_dump($k, $v); }

Output
Performance
VLD
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var_dump: documentation ( source)

preferences:dark modelive preview

72.59 ms | 402 KiB | 5 Q