生成数字组合

这是一个递归解决方案：

$nbRank = 3;$nbNumeric = 2;function getCombinations ($length, $min, $max, $aStartingCombinations){    if ($length == 1)    {        return range ($min, $max);    }    $final = array ();    foreach (getCombinations ($length - 1, $min, $max, $aStartingCombinations) as $combination)    {        for ($i = $min; $i <= $max; $i++)        { $final [] = $combination . $i;        }    }    return $final;}print_r (getCombinations ($nbRank, 0, $nbNumeric, array ()));