Previous and next post links formatting

See the codex. The first parameter is format, the second is link text.

 <?php previous_post_link('<strong>%link</strong>', '&laquo;'); ?>
   <?php next_post_link('<strong>%link</strong>', '&raquo;'); ?> 

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)