Re: cookie help

thanks! "Rasmus Lerdorf" <rasmus@php.net> wrote in message news:Pine.LNX.4.33.0107241724430.1082-100000@rasmus.php.net... > > in order to prevent my visitors from seeing more than one popup in less than > > 120 second, I added this to my php page(index.php) > > -------------- > > setcookie("popup",1,time()+120); > > if ($popup!=1) > > > > echo "<script > > src=http://www.peel.net/frames/PMNforce.js></script>"; > > } > > ------------- > > > > When I reload index.php, i see popups everytime. I am pretty sure that I > > enabled cookies in IE and Netscape. > > > > Please help. thanks > > Do you really think that people will have their system clocks set > accurately to within 120 seconds of your server's system clock? Heck, you > are lucky if they have their clock set to the right year, never mind the > right date and time down to the minute. > > To do this reliably, encode your system time in the cookie value and use > that to determine whether the cookie is valid. And use a session cookie. > Like this: > > $value = 1; > $time = time() + 120; > setcookie('popup',"$time:$value"); > if(isset($popup)) { > list($time,$value) = explode(':',$popup); > if($time > time()) $popup = false; > else $popup = true; > } > > if($popup) > echo "<script src=http://www.peel.net/frames/PMNforce.jsô\è > ›-q¶w3ÞüØ‘></script>"; > > -Rasmus >