note 36181 added to function.usort

Hi guys, I have an array of student section objects which contains course name. I would like to use usort to order this object array based on predefined course name order. For instance, when you do student section object->courseName, you get a string value of a course name(i.e. "Math" or "Reading"). I would like to order this student section object array by its course name. How can I use usort to solve this problem? ---- Manual Page -- http://www.php.net/manual/en/function.usort.php Edit Note -- http://master.php.net/manage/user-notes.php?action=edit+36181 Delete Note -- http://master.php.net/manage/user-notes.php?action=delete+36181&report=yes Reject Note -- http://master.php.net/manage/user-notes.php?action=reject+36181&report=yes