php动态嵌套循环帮助
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我不知道该如何处理。
我的代码比以下代码长，但这是对它的总结：
$array = array(array(\'A\',\'a\'),array(\'B\',\'b\'),array(\'C\',\'c\'),array(\'D\',\'d\'));
$array2 = array();
$i = 0;
while ($i < 2) {
$j = 0;
while ($j < 2) {
$k = 0;
while ($k < 2) {
$l = 0;
while ($l < 2) {
$array2[] = $array[0][$i] . $array[1][$j] . $array[2][$k] . $array[3][$l];
$l++;
}
$k++;
}
$j++;
}
$i++;
}
array (
0 => \'ABCD\',
1 => \'ABCd\',
2 => \'ABcD\',
3 => \'ABcd\',
4 => \'AbCD\',
........ // i have omitted several almost identical lines
14 => \'abcD\',
15 => \'abcd\',
)
没有找到相关结果
已邀请:
1 个回复
凄嘛姥
function permutate($array) { if (empty($array)) { //Stop condition. return $array; } //recursion $permtail = permutate(array_slice($array,1)); //permtail now contains the permutated result of the array without //the first element $result = array(); //permutate the first element foreach($array[0] as $value) { //prepend it to all permutations foreach($permtail as $tail) { $result[] = array_merge((array)$value, $tail); } } return $result; }