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@ 2016-04-13T10:12:10Z

<?php
        $srv = array('build', 'calss');
        for ($i = 0; $i < 1000; $i++) {
		    $srv_keys = array_keys($srv);
		    $cant_be_together = array('build', 'class');
		    if(count(array_intersect($srv_keys, $cant_be_together)) === count($cant_be_together)) { $str = $i; }
        }

Output
Performance
VLD
References
Branches

array_intersect: documentation ( source)
array_keys: documentation ( source)

preferences:dark modelive preview

62.78 ms | 402 KiB | 5 Q