note 50066 added to faq.databases

I get this error when i open meny_mat.php, why? Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in d:\easyphp1-7\www\meny_mat.php on line 3 ---- Manual Page -- http://www.php.net/manual/en/faq.databases.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+50066 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+50066&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+50066&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+50066&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+50066&report=yes&reason=useless Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+50066&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+50066&report=yes Search -- http://master.php.net/manage/user-notes.php