combo box's problem

[stanley87]

hi,guys,i m new to php.now i gonna link a group of check box to mysql database which link among form.php and process.php.my page in to do the search from category that i check with the category,means maybe i can check 1 box,or money box together when i press the search button..now my problem is i dunno how to write the php code to link those check box togher in 1 time and link with many tables in mysql database.have any ppl gt related source code to let me know write about these kinds of think,basically my process is check the category as many as i want(using $post ),then when i press search button,the search result will go select query n retrieve the data and display in a table area(write different select query to the mysql,echo those query related with search category).plz help me by giving some guide,thx!