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@ 2013-07-17T19:09:05Z

<?php

function not($f) {
    return function () use ($f) {
        return !call_user_func_array($f, func_get_args());
    };
}

var_dump(array_filter([null, 0, 1, 2], not("is_null")));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
array_filter: documentation ( source)

preferences:dark modelive preview

28.36 ms | 402 KiB | 5 Q