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<?php print_r(every(array(3,2,2))); print_r(every(array(1,2,3,4))); function every($levels) { $results = array(); $i = 0; while(true) { $current = $i; $result = array(); foreach(array_reverse($levels) as $max) { array_unshift($result, $current % $max); $current = intval($current / $max); } if($current >= 1) { break; } else { $results[] = $result; $i++; } } return $results; }

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Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => Array ( [0] => 0 [1] => 0 [2] => 0 ) [1] => Array ( [0] => 0 [1] => 0 [2] => 1 ) [2] => Array ( [0] => 0 [1] => 1 [2] => 0 ) [3] => Array ( [0] => 0 [1] => 1 [2] => 1 ) [4] => Array ( [0] => 1 [1] => 0 [2] => 0 ) [5] => Array ( [0] => 1 [1] => 0 [2] => 1 ) [6] => Array ( [0] => 1 [1] => 1 [2] => 0 ) [7] => Array ( [0] => 1 [1] => 1 [2] => 1 ) [8] => Array ( [0] => 2 [1] => 0 [2] => 0 ) [9] => Array ( [0] => 2 [1] => 0 [2] => 1 ) [10] => Array ( [0] => 2 [1] => 1 [2] => 0 ) [11] => Array ( [0] => 2 [1] => 1 [2] => 1 ) ) Array ( [0] => Array ( [0] => 0 [1] => 0 [2] => 0 [3] => 0 ) [1] => Array ( [0] => 0 [1] => 0 [2] => 0 [3] => 1 ) [2] => Array ( [0] => 0 [1] => 0 [2] => 0 [3] => 2 ) [3] => Array ( [0] => 0 [1] => 0 [2] => 0 [3] => 3 ) [4] => Array ( [0] => 0 [1] => 0 [2] => 1 [3] => 0 ) [5] => Array ( [0] => 0 [1] => 0 [2] => 1 [3] => 1 ) [6] => Array ( [0] => 0 [1] => 0 [2] => 1 [3] => 2 ) [7] => Array ( [0] => 0 [1] => 0 [2] => 1 [3] => 3 ) [8] => Array ( [0] => 0 [1] => 0 [2] => 2 [3] => 0 ) [9] => Array ( [0] => 0 [1] => 0 [2] => 2 [3] => 1 ) [10] => Array ( [0] => 0 [1] => 0 [2] => 2 [3] => 2 ) [11] => Array ( [0] => 0 [1] => 0 [2] => 2 [3] => 3 ) [12] => Array ( [0] => 0 [1] => 1 [2] => 0 [3] => 0 ) [13] => Array ( [0] => 0 [1] => 1 [2] => 0 [3] => 1 ) [14] => Array ( [0] => 0 [1] => 1 [2] => 0 [3] => 2 ) [15] => Array ( [0] => 0 [1] => 1 [2] => 0 [3] => 3 ) [16] => Array ( [0] => 0 [1] => 1 [2] => 1 [3] => 0 ) [17] => Array ( [0] => 0 [1] => 1 [2] => 1 [3] => 1 ) [18] => Array ( [0] => 0 [1] => 1 [2] => 1 [3] => 2 ) [19] => Array ( [0] => 0 [1] => 1 [2] => 1 [3] => 3 ) [20] => Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 0 ) [21] => Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 1 ) [22] => Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 2 ) [23] => Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 ) )

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