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@ 2014-09-15T11:01:38Z

<?php
$productStates = array(1,2,3,4,5);
if(($key = array_search('3', $productStates)) !== false) {
    unset($productStates[$key]);
}

var_dump($productStates);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
array_search: documentation ( source)

preferences:dark modelive preview

33.64 ms | 402 KiB | 5 Q