php打乱数组:二维数组和多维数组2014-08-31php中的shuffle函数只能打乱一维数组,有什么办法快速便捷的打乱多维数组?手册上提供了
<?php function shuffle_assoc($list) { if (!is_array($list)) return $list; $keys = array_keys($list); shuffle($keys); $random = array(); foreach ($keys as $key) $random[$key] = $list[$key]; return $random; } ?>上面这个是针对二维数组的!下面针对多维数组的乱序方法?尽可能的方便快速:
<?php function shuffle_assoc($list) { if (!is_array($list)) return $list; $keys = array_keys($list); shuffle($keys); $random = array(); foreach ($keys as $key) $random[$key] = shuffle_assoc($list[$key]); return $random; } ?>以下函数也是出自php手册,可以打乱多维数组:
/** * Shuffles an associative array recursive ** @param array $array * @return array * */function rec_assoc_shuffle($array){$ary_keys = array_keys($array);$ary_values = array_values($array);shuffle($ary_values);foreach($ary_keys as $key => $value) {if (is_array($ary_values[$key]) AND $ary_values[$key] != NULL) {$ary_values[$key] = rec_assoc_shuffle($ary_values[$key]);}$new[$value] = $ary_values[$key];}return $new;}