public function getTitle()
    {
        if ($this->title === null) {
            $match = [];
            preg_match(self::$REGEX_TITLE, $this->output, $match);
            $this->title = array_key_exists(2, $match) ? trim($match[2]) : '';
        }

        return $this->title;
    }
public function getTitle()
    {
        if ($this->title === null) {
            $match = [];
            preg_match(self::$REGEX_TITLE, $this->output, $match);
            $this->title = array_key_exists(2, $match) ? trim($match[2]) : '';
        }

        return $this->title;
    }
public function getTitle ( ) { if ( $ this -> title === null ) { $ match = [ ] ; preg_match ( self :: $ REGEX_TITLE , $ this -> output , $ match ) ; $ this -> title = array_key_exists ( 2 , $ match ) ? trim ( $ match [ 2 ] ) : '' ; } return $ this -> title ; }
Return the title field from the movie or audio file.

@return string
Return the title field from the movie or audio file .