note 57948 added to language.functions

I'm having a bit of trouble understanding functions .... is there anybody out there that could help me out? I think that I have a rudimentary understanding of it, but there are still a couple of points that I seem to be missing ...... if there's anybody who could help me out, i'd be very much obliged :) ---- Manual Page -- http://www.php.net/manual/en/language.functions.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+57948 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+57948&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+57948&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+57948&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+57948&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+57948&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+57948&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+57948&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+57948&report=yes Search -- http://master.php.net/manage/user-notes.php