<?php 
 
/* 
 * This file is part of the Symfony package. 
 * 
 * (c) Fabien Potencier <[email protected]> 
 * 
 * For the full copyright and license information, please view the LICENSE 
 * file that was distributed with this source code. 
 */ 
 
namespace Symfony\Component\Translation; 
 
use Symfony\Component\Translation\Exception\InvalidArgumentException; 
 
/** 
 * TranslatorInterface. 
 * 
 * @author Fabien Potencier <[email protected]> 
 */ 
interface TranslatorInterface 
{ 
    /** 
     * Translates the given message. 
     * 
     * @param string      $id         The message id (may also be an object that can be cast to string) 
     * @param array       $parameters An array of parameters for the message 
     * @param string|null $domain     The domain for the message or null to use the default 
     * @param string|null $locale     The locale or null to use the default 
     * 
     * @return string The translated string 
     * 
     * @throws InvalidArgumentException If the locale contains invalid characters 
     */ 
    public function trans($id, array $parameters = array(), $domain = null, $locale = null); 
 
    /** 
     * Translates the given choice message by choosing a translation according to a number. 
     * 
     * @param string      $id         The message id (may also be an object that can be cast to string) 
     * @param int         $number     The number to use to find the indice of the message 
     * @param array       $parameters An array of parameters for the message 
     * @param string|null $domain     The domain for the message or null to use the default 
     * @param string|null $locale     The locale or null to use the default 
     * 
     * @return string The translated string 
     * 
     * @throws InvalidArgumentException If the locale contains invalid characters 
     */ 
    public function transChoice($id, $number, array $parameters = array(), $domain = null, $locale = null); 
 
    /** 
     * Sets the current locale. 
     * 
     * @param string $locale The locale 
     * 
     * @throws InvalidArgumentException If the locale contains invalid characters 
     */ 
    public function setLocale($locale); 
 
    /** 
     * Returns the current locale. 
     * 
     * @return string The locale 
     */ 
    public function getLocale(); 
} 
 
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