更改多维数组的数据结构形式

原数组$arr1的数据结构为：

array(1) {
  ["pic"]=>
  array(5) {
    ["name"]=>
    array(4) {
      [0]=>
      string(9) "icon1.png"
      [1]=>
      string(9) "icon2.png"
      [2]=>
      string(9) "icon3.png"
      [3]=>
      string(9) "icon4.png"
    }
    ["type"]=>
    array(4) {
      [0]=>
      string(9) "image/png"
      [1]=>
      string(9) "image/png"
      [2]=>
      string(9) "image/png"
      [3]=>
      string(9) "image/png"
    }
    ["tmp_name"]=>
    array(4) {
      [0]=>
      string(27) "C:\Windows\Temp\phpA04F.tmp"
      [1]=>
      string(27) "C:\Windows\Temp\phpA050.tmp"
      [2]=>
      string(27) "C:\Windows\Temp\phpA051.tmp"
      [3]=>
      string(27) "C:\Windows\Temp\phpA052.tmp"
    }
    ["error"]=>
    array(4) {
      [0]=>
      int(0)
      [1]=>
      int(0)
      [2]=>
      int(0)
      [3]=>
      int(0)
    }
    ["size"]=>
    array(4) {
      [0]=>
      int(1815)
      [1]=>
      int(1502)
      [2]=>
      int(3953)
      [3]=>
      int(2435)
    }
  }
}

要将其数据结构形式改为如下：

array(1) {
  ["pic"]=>
  array(4) {
    [0]=>
    array(5) {
      ["name"]=>
      string(9) "icon1.png"
      ["type"]=>
      string(9) "image/png"
      ["tmp_name"]=>
      string(27) "C:\Windows\Temp\phpA04F.tmp"
      ["error"]=>
      int(0)
      ["size"]=>
      int(1815)
    }
    [1]=>
    array(5) {
      ["name"]=>
      string(9) "icon2.png"
      ["type"]=>
      string(9) "image/png"
      ["tmp_name"]=>
      string(27) "C:\Windows\Temp\phpA050.tmp"
      ["error"]=>
      int(0)
      ["size"]=>
      int(1502)
    }
    [2]=>
    array(5) {
      ["name"]=>
      string(9) "icon3.png"
      ["type"]=>
      string(9) "image/png"
      ["tmp_name"]=>
      string(27) "C:\Windows\Temp\phpA051.tmp"
      ["error"]=>
      int(0)
      ["size"]=>
      int(3953)
    }
    [3]=>
    array(5) {
      ["name"]=>
      string(9) "icon4.png"
      ["type"]=>
      string(9) "image/png"
      ["tmp_name"]=>
      string(27) "C:\Windows\Temp\phpA052.tmp"
      ["error"]=>
      int(0)
      ["size"]=>
      int(2435)
    }
  }
}

更改方法为：

$arr2=array();
foreach ($arr1['pic'] as $key01 => $val01) {
    foreach ($val01 as $key02 => $val02) {
        $arr2['pic'][$key02][$key01]=$val02;
    }
}

echo "<pre>";
var_dump($arr2);
echo "</pre>";