Set_time_limit ( )

hello, plz someone help me out for this script set_time_limit (); I have problem with : Fatal error: Maximum execution time of 30 seconds exceeded in D:\hshome\angelina\ud-clan.net\forum\posting.php on line 23 I can't fix php.ini coz my hosting company not allow, and they don't adjust php.ini setting for it. so, i only have way to use set_time_limit () : to fix max execution error on my forum www.ud-clan.net/forum my members need to post much bigger files, so max execution time 30 sec is too short. it must be at least 3 mins. my hosting company asked me to fix /forum/templates/subsilber/subsilber.cfg add set_time_limit (); to next of <?php .. I did it as follow. but still not working, I asked my members to test.. but when they posting files, it still showing max execution error. !!!! thk you ^^