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多维数组转一维
/** * 将多维数组转为一维数组 * @author echo* @param array $arr * @return array */ function ArrMd2Ud($arr) { #将数值第一元素作为容器,作地址赋值。 $ar_room = &$arr[key($arr)]; #第一容器不是数组进去转呀 if (!is_array($ar_room)) { #转为成数组 $ar_room = array($ar_room); } #指针下移 next($arr); #遍历 while (list($k, $v) = each($arr)) { #是数组就递归深挖,不是就转成数组 $v = is_array($v) ? call_user_func(__FUNCTION__, $v) : array($v); #递归合并 $ar_room = array_merge_recursive($ar_room, $v); #释放当前下标的数组元素 unset($arr[$k]); } return $ar_room; }
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2. [代码]调
$arr = array(1, 2, 3 => array(1, 2, 'ar' => array(1, 2 => array('a', 'b'))), array('ar' => array(3, 4))); print_r(ArrMd2Ud($arr));
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