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@ 2013-03-13T13:40:13Z

<?php
function x($n) {
    echo "Factors: ";
    for($i = 1; $i <= $n; $i++) {
    	if ($n % $i == 0) {
    		$factors[] = $i;
            echo "$i ";
    	}
        elseif ($i == $n) {
            echo "\n";
    	}
    }
    if ($n == array_sum($factors)) {
		echo "It's perfect!";
    }
    else {
        echo "It's not perfect!";
    }
}

x(28);

?>

Output
Performance
VLD
References
Branches

array_sum: documentation ( source)

preferences:dark modelive preview

48.23 ms | 402 KiB | 5 Q