Answers for "laravel validation error custom name"

how to add an custom error to validater error in laravel

if (request('event') == null) {
    $validator->errors()->add('event', 'Please select an event');
}

laravel custom validation

namespace App\Rules;

use Illuminate\Contracts\Validation\Rule;

class GreaterThanTen implements Rule
{
    // Should return true or false depending on whether the attribute value is valid or not.
    public function passes($attribute, $value)
    {
        return $value > 10;
    }

    // This method should return the validation error message that should be used when validation fails
    public function message()
    {
        return 'The :attribute must be greater than 10.';
    }
}