Laravel validation only allow one value for each field

Question

I currently have a validation for sortField but I checked this accepts

/api/request?sortField='date'&sortField='time'

and I want it to only accept one value for the sortField so the above request should fail and throw an error. This can be nullable also.

public function rules()
{
  return [
  'sortField' => 'string',
  ];
}

Answer 1

• you need to as custom validation for one word
• you can check by following link :

https://blog.quickadminpanel.com/laravel-custom-validation-rule-max-word-count/