Laravel 5.4: How do I validate an image size?

Question

I have a form where a user can submit an image. I don't want to store it on my server in case it's a virus but instead store it to Amazon S3.

My issue is that I need to validate if the image is less than a specific dimension. How can I do that in Laravel 5.4?

My controller

 $validator = \Validator::make($request->all(),[
    "logo"      => "dimensions:max_width:300,max_height:200",
 ]);

 if($validator->fails()){
    return \Redirect::back()->withInput()->withErrors( $validator );
 }

The validation fails and redirects back with "The logo has invalid image dimensions." eventhough the image i'm uploading is 100x100. What's the correct way to validate or what are alternate solutions without having to save the file?

Are you sure your form is method=POST and has `enctype="multipart/form-data"` attribute, and the "logo" field is a file input? — F.Igor, Jul 14 '18 at 01:08

TalESid · Accepted Answer · 2020-10-13T04:45:38.890

21

use equals sign (=) rather than colon (:) with max_width & max_height :

"logo"  => "dimensions:max_width=300,max_height=200",

Image dimension validation rules in Laravel

If it doesn't solve, make sure that your form has enctype="multipart/form-data" (as mentioned in comment by @F.Igor):

<form method="POST" enctype="multipart/form-data">
    <input type="file" name="logo">
    <input type="submit">
</form>

If you already using this, then check (before validation) whether you are getting image with your request and with what name:

dd($request->all())

edited Oct 13 '20 at 04:45

answered Jul 14 '18 at 02:00

TalESid

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Thanks it was the enctype missing. Having the colons actually still worked. – MalcolmInTheCenter Jul 16 '18 at 16:34

score 1 · Answer 2 · answered May 24 '21 at 20:15

Here is a validation example for:

Image formats
Max file size
Dimensions

$request->validate([
     'avatar' => ['image','mimes:jpg,png,jpeg,gif','max:200','dimensions:min_width=100,min_height=100,max_width500,max_height=500'],
]);

max:200 (200kb max size limit)

Laravel 5.4: How do I validate an image size?

2 Answers2