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### method `useDomain( `$domain`)`

If you decided to store your translations into separate files, one for each application, for example, this method allows you to select the translation domain from your templates ( `i18n:domain`).

                <?php
    class MyTranslator implements PhpTal\TranslationServiceInterface {
        …
        public function useDomain($domain){
            if (!array_key_exists($domain, $this->_domains)){
                $file = "domains/$this->_currentLang/$domain.php";
                $this->_domains[$domain] = include($file);
            }
            $this->_currentDomain = $this->_domains[$domain];
        }
        …
        private $_currentDomain;
        private $_domains = array();
    }
    ?>

The above example is a possible translation solution where keys are stored in PHP files which return an associative array of key => translation.

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