- array_sum: documentation ( source)
<?php
function x($n) {
for($i = 1; $i <= $n; $i++) {
if ($n % $i == 0 && $i != $n) {
$factors[] = $i;
echo "$i is a factor of $n." . PHP_EOL;
}
elseif ($i == $n) {
echo "Removing $n from array.." . PHP_EOL;
}
}
if ($n == array_sum($a) / 2) {
echo "It's perfect!" . PHP_EOL;
}
else {
echo "It's not perfect!" . PHP_EOL;
}
}
x(42);
?>