RE: [PHP] Finding out when a Web page has changed

You could cache/save the actual contents of the file, then when you read it next time, compare it to what you saved and see if it changed. You may want to filter out everything but what's between <body> and </body>, so you're not thinking it changed just b/c of something in the headers... ---John Holmes... > -----Original Message----- > From: Vikram Vaswani [mailto:vikram@w-o-i.com] > Sent: Thursday, September 26, 2002 7:04 AM > To: php-general@lists.php.net > Subject: [PHP] Finding out when a Web page has changed > > Hi all, > > I need to write an application that accepts a list of URLs and checks them > on a daily basis (via cron) to see if the pages have changed in the past > day. > > I need some help with this. Does anyone know the most optimal way to find > out when a particular Web page has been modified? I am thinking about > using > the Last-Modified: HTTP header - however, all servers do not return this > header - any ideas on what the fallback should be? > > TIA, > > Vikram > -- > "I find your lack of faith disturbing." > --Darth Vader > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php