public function contains($data, $append = true) {
        $this->_content = $append ? $this->_content . $data : $data;
        
        return $this;
    }
public function contains($data, $append = true) {
        $this->_content = $append ? $this->_content . $data : $data;
        
        return $this;
    }
public function contains ( $ data , $ append = true ) { $ this -> _content = $ append ? $ this -> _content . $ data : $ data ; return $ this ; }
Set contents of tag

@access  public
@param   string  $data   Contents
@param   bool    $append Append or set tag content. (default true)
@return  object  Tag instance
Set contents of tag