<?php
 
 namespace Illuminate\Contracts\Validation;
 
 use Illuminate\Contracts\Support\MessageProvider;
 
 interface Validator extends MessageProvider
 {
     /**
      * Run the validator's rules against its data.
      *
      * @return array
      */
     public function validate();
 
     /**
      * Get the attributes and values that were validated.
      *
      * @return array
      */
     public function validated();
 
     /**
      * Determine if the data fails the validation rules.
      *
      * @return bool
      */
     public function fails();
 
     /**
      * Get the failed validation rules.
      *
      * @return array
      */
     public function failed();
 
     /**
      * Add conditions to a given field based on a Closure.
      *
      * @param  string|array  $attribute
      * @param  string|array  $rules
      * @param  callable  $callback
      * @return $this
      */
     public function sometimes($attribute, $rules, callable $callback);
 
     /**
      * Add an after validation callback.
      *
      * @param  callable|string  $callback
      * @return $this
      */
     public function after($callback);
 
     /**
      * Get all of the validation error messages.
      *
      * @return \Illuminate\Support\MessageBag
      */
     public function errors();
 }