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@ 2013-12-15T19:19:32Z

<?php
function atLeastTwoNotNull() {
    return (count(array_filter(func_get_args(), 'is_null')) < 2);	
}

$a = null;
$b = true;
$c = false;
$d = null;
$e = null;

var_dump(atLeastTwoNotNull($a, $b, $c, $d, $e));

Output
Performance
VLD
References
Branches

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

preferences:dark modelive preview

44.31 ms | 402 KiB | 5 Q