doujian1050
2016-11-06 20:50
浏览 203
已采纳

使用for循环的Laravel多个图像上传

I'm in a situation where I will have to upload some pictures based on user needs. A user may have 1, 2 or more then 3++ children. So I'm using a for loop while uploading his children images. Here is my form:

@for($i=1;$i<=$ticket->children_count;$i++)
    <div class="form-group">
      <label for="">Child {{ $i }} Name:</label>
      <input type="text" name="child_name_{{$i}}" value="" required="" class="form-control">
    </div>
    <div class="form-group">
       <label for="">Child {{ $i }} Photo:</label>
       <input type="file" name="child_picture_{{$i}}" value="" required="">
    </div>
 @endfor

I want to receive the file from backend but somehow I'm getting null. Here is the for loop inside the controller:

for ($i=1; $i <= $ticket->children_count ; $i++) {
            $file = $request->file("child_picture_.$i");
            dd($request->child_name_.$i);
}

The above code returns only the value of $i. How do I receive the file properly? It has to be something like child_name_1 or child_name_2 child_picture_1 or child_picture_3 etc.

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2条回答 默认 最新

  • doujiao0110 2016-11-06 21:06
    已采纳

    You should replace the following:

    dd($request->child_name_.$i);
    // php thinks that you are providing two variables:
    // $request->child_name_ and $i
    

    To:

    dd($request->{'child_name_'.$i});
    // makes sure php sees the whole part
    // as the name of the property
    

    Edit

    And for the file, replace:

    $file = $request->file("child_picture_.$i");
    

    To:

    $file = $request->file("child_picture_" . $i);
    
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  • doukong5394 2016-11-07 04:56

    Excuse me, but for multiple files you should use arrays (maintainability, readability), like this:

    @for($i=1;$i<=$ticket->children_count;$i++)
    <div class="form-group">
      <label for="">Child {{ $i }} Name:</label>
      <input type="text" name="child_names[]" value="" required="" class="form-control">
    </div>
    <div class="form-group">
       <label for="">Child {{ $i }} Photo:</label>
       <input type="file" name="child_pictures[]" value="" required="">
    </div>
    @endfor
    

    And in your controller check the request has file like so:

    if ($request->hasFile('child_pictures')) {
        $files = $request->file('child_pictures');
    
        foreach($files as $file) {
            var_dump($file); // dd() stops further executing!
        }
    }
    
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