多维数组foreach只返回一个结果

Question

我是一个php初学者，我有一个变量，什么存储关于上传图像的信息

得到一个多维数组

Array
(
    [0] => Array
        (
            [errors] => Array
                (
                )
            [path] => addons/uploads/albums/1/1/rDtKgyVAvTjSkLA.jpg
            [filename] => rDtKgyVAvTjSkLA.jpg
            [original_name] => rachaelCache_5750270_thm.jpg
            [resizes] => Array
                (
                    [0] => 1
                    [1] => 1
                )
        )
    [1] => Array
        (
            [errors] => Array
                (
                )
            [path] => addons/uploads/albums/1/1/qTLglBgAPxvDFtr.png
            [filename] => qTLglBgAPxvDFtr.png
            [original_name] => Screen Shot 2013-03-02 at 11.28.48 AM.png
            [resizes] => Array
                (
                    [0] => 1
                    [1] => 1
                )
        )
)

但是当我查询它时，我只得到一个结果

foreach ($upload as $row) {
   echo $row['filename'];
}

谁能告诉我为什么会这样?

Answer 1

重新创建您的代码作为实时演示，工作正常:--> http://3v4l.org/986e7

$upload = array(array(
        'errors' => array(), 
        'filename' => '/some/path/to/a/file.jpg'), 
    array(
        'errors' => array(), 
        'filename' => '/yet/another/path.jpg'));
var_dump($upload);
foreach ($upload as $x) 
    echo $x['filename'],"<br>";
echo $upload[0]['filename'];

找出什么是错的，我把一个var_dump($upload);在你的foreach -循环之前，看看$upload是否持有你认为它持有。