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<?php function variations($digits, $prefix = '') { $result = []; for ($i = 1; $i <= 3; $i++) { $variation = $prefix . $i; if ($digits > 1) { $result = array_merge($result, variations($digits - 1, $variation)); } else { $result[] = $variation; } } return $result; } print_r(variations(1));
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => 1 [1] => 2 [2] => 3 )

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