Laravel form validation (form request) with file upload field named documents[]

Here take a look at this post:

https://stackoverflow.com/questions/42258185/how-to-validate-array-in-laravel

@frogeyedman Thanks it has helped but what if I want to check the whole array together rather than individual file uploads. Thanks

If you want to use the array itself you can do it like this:

$request->validate([ // will validate the array "name" => 'required|array|min:3', ]);

@nizam0786

you cannot just validate an empty array, what you can do is either loop on the FILES and validate each file if the format you want matches or do a dotted notation like

$request->validate([
 'document.image' => ['required', 'max:8000']
]);

@jsdecena Hi thanks for your reply.

The array isn't empty multiple files can be added.

How would I loop through them in the form request file. I am not validating in the controller I am using a form request class so does that mean I have to override a method etc...

an example would be helpful if possible. Thanks

@nizam0786

if you want to validate all files you have to do it like this, it does not matter if you validating inside the controller or a form request class.

return [ 'documents.*' => 'max:8000', ];

this will validate all the uploaded documents inside the array, .* laravel handles it this way

@nizam0786 How about this?

https://gist.github.com/jsdecena/ab6532b52470d52de1aade79ac9b7686

<?php

use Illuminate\Http\UploadedFile;

class SomeController extends Controller {
  
  // loop example
  public function store(Request $request)
  {
    if($request->hasFile('files')) {
      collect($request->file('files'))->each(function(UploadedFile $file){   
        $this->validateFiles($file);
        $filesname = $file->store('folder-name', ['disk' => 'public']);
        
          // Will output folder-name/randomstring.jpg (if you uploaded a jpeg)
         dd($filename);
      });
    }
  }
  
  /**
  *
  * Validate the uploaded files
  */
  private function validateFiles(UploadedFile $file) 
  {
        // https://laravel.com/docs/5.6/validation#rule-file
        $validator = Validator::make($request->all(), [
            'file' => 'file,max:8000'
        ]);
    
        if ($validator->fails()) {
            return redirect()->back()
              ->withErrors($validator)
              ->withInput();
        }    
  }
}

@frogeyedman I have tried that but no luck.

I have the following rule:

 return [
            'documents.*' => 'max:5000',
        ];

It does not allow me to upload a file larger than 5mb within the array however, it will allow me to still exceed 5mb thats with multiple files.

e.g. if I upload a 6mb file error will be returned but if I try and upload two 4mb files both will be uploaded. I want the limit for individual and the array as a whole to be 5mb.

hope that makes sense. Thanks

@jsdecena thanks for you reply will look into it.

@nizam0786 now it makes sense, i don't think laravel has a out of the box solution for that