compare.php

<?php
global $a, $b;

list($foo, $bar) = [
    [1, 2, 9, 9, 9, 9],
    [6, 5, 4, 3, 2, 7],
];

foreach (range(0, count($foo) - 1) as $x => $y) {
   	((($foo[$x] <=> $bar[$x]) > 0) ? $a++ : $b++); // (foo[index] - bar[index]) || if (foo > 0) then a++ or b++ 
}

printf("[*] Result: %s" . PHP_EOL, (($a == $b) ? 'Draw' : (($a > $b) ? 'Foo' : 'Bar')));