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@ 2015-11-10T19:59:38Z

<?php

    $a = range(1, 100000);
    foreach ($a as &$x) {
        $x = range(1, 1000);
    }

Output
Performance
VLD
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range: documentation ( source)

preferences:dark modelive preview

40.25 ms | 402 KiB | 5 Q