public function getNameByKey($key)
    {
        return (array_key_exists($key, $this->_languages)) ? $this->_languages[$key] : null;
    }
public function getNameByKey($key)
    {
        return (array_key_exists($key, $this->_languages)) ? $this->_languages[$key] : null;
    }
public function getNameByKey ( $ key ) { return ( array_key_exists ( $ key , $ this -> _languages ) ) ? $ this -> _languages [ $ key ] : null ; }
Get the language name by key.

@param (string) $key valid key

@since 3.0.0

@return string
Get the language name by key .