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Image validation on laravel 8




"To validate the file in Laravel, you can use the file validation rule. For example, to validate that the file input is required and has a maximum file size of 2 megabytes, you can use the following validation rule:

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$validator = Validator::make($request->all(), [
    'file' => 'required|max:2048', // maximum 2 MB
]);

The above validation rule will validate the file input that must be required (required) and have a maximum size of 2 megabytes (max:2048). You can also use a form request to validate the file in Laravel. Here's an example of code for a form request that validates input files:

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namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;

class StoreFileRequest extends FormRequest
{
    public function authorize()
    {
        return true;
    }

    public function rules()
    {
        return [
            'file' => 'required|max:2048', // maximum 2 MB
        ];
    }
}

In the above example code, the validation rules are defined in the rules method. If the validation fails, Laravel will send an HTTP 422 (Unprocessable Entity) response with the corresponding error messages. If the validation succeeds, then the requested process can be continued. You can use this form request in the controller to validate the input file:

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namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;

class StoreFileRequest extends FormRequest
{
    public function authorize()
    {
        return true;
    }

    public function rules()
    {
        return [
            'file' => 'required|max:2048', // maximum 2 MB
        ];
    }
}

In the above example code, the StoreFileRequest form request is used in the store method of the controller. If the validation fails, Laravel will send an HTTP 422 (Unprocessable Entity) response with the corresponding error messages. If the validation succeeds, then the requested process can be continued."

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