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@ 2013-08-12T20:25:27Z

<?php
$arr = array();
for ($i = 0; $i < 100000; ++$i) {
    $arr[] = $i;
}
print microtime();
$k = array_search(59281, $arr);
print microtime();
unset($arr[$k]);
print microtime();

Output
Performance
VLD
References
Branches

microtime: documentation ( source)
array_search: documentation ( source)

preferences:dark modelive preview

28.37 ms | 402 KiB | 5 Q