Finding correct format for PHP comments in Doxygen

Question

Which is the correct doxygen format for PHP comments?

#1

/** Create HTML for tags
 * @param string @tags
 */

#2

   /** 
     * Create HTML for tags
     * @param string @tags
     */

#3

   /**! Create HTML for tags
     * @param string @tags
     */

Answer 1

All should work.