php三个数求最大值

php三个数求最大值

<?php
function maxnum($a, $b, $c) {
    $m = $a > $b ? $a : $c;
    $m = $m > $c ? $m : $c;
    return $m;
}
echo maxnum(1, 7, 17);
echo "\n";
function compare($a, $b, $c) {
    return $a > $b ? ($a > $c ? $a : $c) : ($b > $c ? $b : $c);
}
echo compare(1, 7, 17);