public function headersSent(&$file, &$line)
    {
        $file = $this->headers_sent_file;
        $line = $this->headers_sent_line;
        return $this->headers_sent;
    }
public function headersSent(&$file, &$line)
    {
        $file = $this->headers_sent_file;
        $line = $this->headers_sent_line;
        return $this->headers_sent;
    }
public function headersSent ( & $ file , & $ line ) { $ file = $ this -> headers_sent_file ; $ line = $ this -> headers_sent_line ; return $ this -> headers_sent ; }
Checks if headers have been sent
@param  string &$file File name
@param  integer &$line Line in file
@return boolean        Success
Checks if headers have been sent