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@ 2014-04-28T16:55:34Z

<?php

function abc($a)
{
    unset($a[-1]);
}

$a = range(1, 5000);

echo memory_get_peak_usage(true), "\n";
abc($a);
echo memory_get_peak_usage(true), "\n";

Output
Performance
VLD
References
Branches

memory_get_peak_usage: documentation ( source)
range: documentation ( source)

preferences:dark modelive preview

32.6 ms | 402 KiB | 5 Q