使用PHP进行数组迭代和合并

我有一个像这样的数组:'

<>之前的数组（[0] =>数组（[0] =>数组（[productid] => 141[fieldid] => 2[value] =>笔记本电脑）[1] =>数组（[productid] => 191[fieldid] => 2[value] =>图书）[2] =>数组（[productid] => 177[fieldid] => 2[value] =>打印机））[1] =>数组（[0] =>数组（[productid] => 141[fieldid] => 1[value] => 3）[1] =>数组（[productid] => 191[fieldid] => 1[value] => 4）[2] =>数组（[productid] => 177[fieldid] => 1[value] => 2））) 之前

我想修改这个数组，看起来像这样:

<>之前数组（[0] =>数组（[productid] => 141[fieldid] => 2[value] =>笔记本电脑）[1] =>数组（[productid] => 191[fieldid] => 2[value] =>图书）[2] =>数组（[productid] => 177[fieldid] => 2[value] =>打印机）[3] =>阵列（[productid] => 141[fieldid] => 1[value] => 3）[4] =>数组（[productid] => 191[fieldid] => 1[value] => 4）[5] =>数组（[productid] => 177[fieldid] => 1[value] => 2））之前

只需删除外部数组并将数组的所有块合并为一个。这在php中可能吗?

$new_items = array();
foreach($items as $item)
{
    $new_items = array_merge($new_items,array_values($item));
}

//let the older array be $array
var $newArray = array();  //new array(all itms will be taken to this array)      
foreach($array as $key->$value){
    foreach($value as $key->$innervalue){
            $newArray[] = $innervalue;
             }
    }