Php数组显示多数组的第一个值

Question

我知道这是一个简单的问题，但我无法弄清楚。

如何才能显示此阵列中的第一个值（文件未上传）？阵列可以是不同的！所以$ test [fileUploadFileErrorNoFile]不是sollution。

$test = Array ( [fileUploadFileErrorNoFile] => File was not uploaded 
                [fileMimeTypeNotReadable] => File is not readable or does not exist 
                [fileIsImageNotReadable] => File is not readable or does not exist 
                [fileImageSizeNotReadable] => File is not readable or does not exist 
            )

Answer 1

试试这个：

$test = Array (   "[fileIsImageNotReadable] => File is not readable or does not exist", "[fileImageSizeNotReadable] => File is not readable or does not exist" );


echo $test[0]; // 0 == the first value

Answer 2

你的阵列看起来像这样吗？

echo $test[0][fileUploadFileErrorNoFile];

然后答案是：

{{1}}