function highlight_with_linenum($file)

{

    //open handle, set vars

    $handle = fopen($file, "r");

    $count = 1;

    $lines = "";

    //look line ends

    while ($thisone = fread($handle, "1")) 

    {

        if ($thisone == "\n") 

        {

            //add number

            $lines .= $count . "<br />";

            $count++;

        }

    }    

    //close handle

    fclose($handle);

    //highlight contents

    $contents = highlight_file($file, TRUE);

    //print output (you could as well return now)

    print '<table><tr><td><code>' . 

          $lines . '</code></td><td>' . 

          $contents . '</td></tr></table>';    

}

http://blog.csdn.net/dizzthxl/article/details/7841701