The module phpSyntaxCheck will place a link on your admin status bar to a PHP syntax checker to allow you to track down those annoying little typos.
4 steps to implement.
Set the position of the module to status. Set the URL of a php syntax checker or just leave the pre-filled one. Determine allowed viewers/users of this link. Publish and save it.
The phpSyntaxCheck link should now appear in the status bar at the top.