Validating multiple files in array

问题

I need to validate multiple uploaded files, making sure they are of a specific type and under 2048kb. The below doesn't appear to check all files in the array 'files' and just presumes the posted files of invalid mime type as it seems to be checking the array object and not its contents.

public function fileUpload(Request $request)
    {

       $validator = Validator::make($request->all(), [
            'files' => 'required|mimes:jpeg,jpg,png',
        ]);

        if ($validator->fails())
        {
            return response()->json(array(
                'success' => false,
                'errors' => $validator->getMessageBag()->toArray()

            ), 400);             }

}

回答1:

You can validate file array like any input array in Laravel 5.2. This feature is new in Laravel 5.2. You can do like following:

$input_data = $request->all();

$validator = Validator::make(
    $input_data, [
    'image_file.*' => 'required|mimes:jpg,jpeg,png,bmp|max:20000'
    ],[
        'image_file.*.required' => 'Please upload an image',
        'image_file.*.mimes' => 'Only jpeg,png and bmp images are allowed',
        'image_file.*.max' => 'Sorry! Maximum allowed size for an image is 20MB',
    ]
);

if ($validator->fails()) {
    // Validation error.. 
}

回答2:

Please try this:

public function fileUpload(Request $request) {
    $rules = [];
    $files = count($this->input('files')) - 1;
    foreach(range(0, $files) as $index) {
        $rules['files.' . $index] = 'required|mimes:png,jpeg,jpg,gif|max:2048';
    }

    $validator = Validator::make($request->all() , $rules);

    if ($validator->fails()) {
        return response()->json(array(
            'success' => false,
            'errors' => $validator->getMessageBag()->toArray()
        ) , 400);
    }
}

回答3:

Try this way.

// getting all of the post data
$files = Input::file('images');

// Making counting of uploaded images
$file_count = count($files);

// start count how many uploaded
$uploadcount = 0;

foreach($files as $file) {
    $rules = array('file' => 'required'); //'required|mimes:png,gif,jpeg,txt,pdf,doc'
    $validator = Validator::make(array('file'=> $file), $rules);
        if($validator->passes()){
            $destinationPath = 'uploads';
                $filename = $file->getClientOriginalName();
                $upload_success = $file->move($destinationPath, $filename);
                $uploadcount ++;
        }
}

if($uploadcount == $file_count){
    //uploaded successfully
}
else {
    //error occurred
}

来源：https://stackoverflow.com/questions/38326282/validating-multiple-files-in-array

标签

laravel

laravel-5.2