note 56417 added to function.header

how to download file using php ? i am a new guy for php so, i ask this question. i have try lot but can't get proper file. main toruble how to give download link. when go to that page it directly download file which is php file. so, how can i put particular download link. ---- Manual Page -- http://www.php.net/manual/en/function.header.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+56417 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+56417&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+56417&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+56417&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+56417&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+56417&report=yes&reason=non-english Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+56417&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+56417&report=yes Search -- http://master.php.net/manage/user-notes.php