php - 处理多维 $_FILES 数组

Question

我有以下 $_FILES 数组用于从支持表单进行处理

Array
(
    [file] => Array
        (
            [name] => Array
                (
                    [0] => Test.jpg
                    [1] => Test.doc
                    [2] => Test.php
                    [3] => 
                )

            [type] => Array
                (
                    [0] => image/jpeg
                    [1] => image/jpeg
                    [2] => image/jpeg
                    [3] => 
                )

            [tmp_name] => Array
                (
                    [0] => /tmp/phpCO0vSD
                    [1] => /tmp/phpEFpp3Q
                    [2] => /tmp/phpwN4Iwc
                    [3] => 
                )

            [error] => Array
                (
                    [0] => 0
                    [1] => 0
                    [2] => 0
                    [3] => 4
                )

            [size] => Array
                (
                    [0] => 1305787
                    [1] => 339773
                    [2] => 480098
                    [3] => 0
                )

        )

)

我的主要问题是理解处理数组所需的逻辑，检查每个文件是否有效(我已经有一个有效扩展名列表)，然后适本地重命名和存储文件。

Google 和 SO 上的解决方案对于我的简单要求来说都相当复杂。

Answer 1

这是遍历数组的方式:

foreach ($_FILES['file']['name'] as $key => $name) {
    echo $name;
    echo $_FILES['file']['type'][$key];
    echo $_FILES['file']['tmp_name'][$key];
}

有了这个循环，你可以轻松地做你想做的事。