php - validate multiple file upload array in laravel

Question

I have a file upload input that allows multiple files to be uploaded. Right now, I am trying to find a way to validate those file uploads but not sure how to work it out.

Code Example

<input type="file" class="form-control" name="file-1649657296668-0[]" access="false" multiple="true" id="file-1649657296668-0">

Let's say I uploaded multiple files on this input, how do I iterate and validate each of the files in this file input and ensure that it passes the validation check? The $request variable was unable to check on each array one by one on this file upload input.

Does this answer your question? Validating multiple files in array — Michael Mano
– Michael Mano, Commented Apr 12, 2022 at 1:33
It doesn't unfortunately. I tried the method based on the link you provided, but the validation still fails. @MichaelMano — cleopatez
– cleopatez, Commented Apr 12, 2022 at 2:54
Also @cleopatez you can do front end validation also accept="image/*" just a side note. — Michael Mano
– Michael Mano, Commented Apr 12, 2022 at 3:12

NickSdot · Accepted Answer · 2022-04-12 01:47:06Z

6

You can use wildcards * for array items.

<input type="file" name="files[]" multiple>

request()->validate([
    'files' => 'required',
    'files.*' => 'mimes:jpeg,jpg,png'
]);

answered Apr 12, 2022 at 1:47

NickSdot

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2 Comments

cleopatez Over a year ago

I tried this as well using the mimes rule, but the validation error popped up even when the file uploaded follows the right extension. @NickSdot

NickSdot Over a year ago

Laravel is checking the mime type in the content of the file. Maybe the files you test aren’t valid?laravel.com/docs/9.x/validation#rule-mimetypes

cleopatez · Accepted Answer · 2022-04-12 03:25:59Z

1

EDIT: Issue solved. Apparently, on the validator check, I missed the correct format of the input file name, since the ID is automatically generated from my formBuilder. Amended my code to follow the correct format.

Input file name example: file-1649657296668-0[]

E.g:

validated = $request->validate([
                       'file-1649657296668-0.*' => 'max:10000|mimes:pdf,xlsx,xls,docx,doc,png,jpg,jpeg',
                    ]);

Make sure to not miss the asterisk for input type files with multiple attributes, or else it won't validate the rest of the files.

answered Apr 12, 2022 at 3:25

cleopatez

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