Setting up cache control header in htacces files - GoFuckYourself.com

p3rsian · 06-19-2012, 12:46 AM

i am trying to tell browsers to get a fresh copy of the site (JOOMLA based) after x hours using this code in htaccess.
main question is if its ok to put PHP file in there . i could not find a site that has it but since its index.php homepage i need it.

Code:

# 2 HOURS
<filesMatch "\.(html|htm|PHP|css|js)$">
Header set Cache-Control "max-age=7200, must-revalidate"
</filesMatch>

thanx 4 helping

p3rsian · 06-19-2012, 01:00 PM

234567

phypon · 06-19-2012, 01:25 PM

I've only recently had experience with far future expires headers. Off the top of my head I don't think PHP will matter one way or another. HTML/CSS/js would be how content and images are displayed. Those would be what would need to be cached.

AzteK · 06-19-2012, 01:30 PM

Quote:

Originally Posted by p3rsian

i am trying to tell browsers to get a fresh copy of the site (JOOMLA based) after x hours using this code in htaccess.
main question is if its ok to put PHP file in there . i could not find a site that has it but since its index.php homepage i need it.

Code:

# 2 HOURS
<filesMatch "\.(html|htm|PHP|css|js)$">
Header set Cache-Control "max-age=7200, must-revalidate"
</filesMatch>

thanx 4 helping

to boro, batcheh mekhad htaccess yad begireh. Mamanet medooneh to enja hasty?

RazorSharpe · 06-19-2012, 03:29 PM

Quote:

Originally Posted by AzteK

to boro, batcheh mekhad htaccess yad begireh. Mamanet medooneh to enja hasty?

Been a long while since I've heard Farsi

AzteK · 06-19-2012, 03:52 PM

Quote:

Originally Posted by RazorSharpe

Been a long while since I've heard Farsi

toh az koja medooni?

raymor · 06-19-2012, 04:39 PM

PHP or not doesn't matter. That's fine for all of the standards compliant browsers. The tricky part is that for IE you need to tell it to not cache in three different ways in order for it to be reliable.

For older versions of IE, that needs to include in the <head> which must be placed at the ends of the document, or at very least place the caching adjectives at the end of the head. The problem is that since IE doesn't cache anything less than 512 bytes anyway, so when it refs the headers it hasn't yet decided to turn on cache, so that's too early to turn off the cache.

On the other hand, IE doesn't know how to handle the Vary header, so it skips when thete is any Vary header. If you set it to Vary on hostname or URL that shouldn't hurt anything because OF COURSE different URLs have different content, but IE isn't smart enough to figure that out, so it skips caching.

06-19-2012, 12:46 AM	#1
p3rsian Confirmed User Join Date: Sep 2003 Posts: 1,050	Setting up cache control header in htacces files i am trying to tell browsers to get a fresh copy of the site (JOOMLA based) after x hours using this code in htaccess. main question is if its ok to put PHP file in there . i could not find a site that has it but since its index.php homepage i need it. Code: # 2 HOURS <filesMatch "\.(html\|htm\|PHP\|css\|js)$"> Header set Cache-Control "max-age=7200, must-revalidate" </filesMatch> thanx 4 helping __________________ boro en harfa chei

06-19-2012, 04:39 PM	#7
raymor Confirmed User Join Date: Oct 2002 Posts: 3,745	PHP or not doesn't matter. That's fine for all of the standards compliant browsers. The tricky part is that for IE you need to tell it to not cache in three different ways in order for it to be reliable. For older versions of IE, that needs to include in the <head> which must be placed at the ends of the document, or at very least place the caching adjectives at the end of the head. The problem is that since IE doesn't cache anything less than 512 bytes anyway, so when it refs the headers it hasn't yet decided to turn on cache, so that's too early to turn off the cache. On the other hand, IE doesn't know how to handle the Vary header, so it skips when thete is any Vary header. If you set it to Vary on hostname or URL that shouldn't hurt anything because OF COURSE different URLs have different content, but IE isn't smart enough to figure that out, so it skips caching. __________________ For historical display only. This information is not current: support@bettercgi.com ICQ 7208627 Strongbox - The next generation in site security Throttlebox - The next generation in bandwidth control Clonebox - Backup and disaster recovery on steroids

06-19-2012, 01:00 PM	#2
p3rsian Confirmed User Join Date: Sep 2003 Posts: 1,050	234567

06-19-2012, 01:25 PM	#3
phypon Confirmed User Join Date: Oct 2003 Posts: 440	I've only recently had experience with far future expires headers. Off the top of my head I don't think PHP will matter one way or another. HTML/CSS/js would be how content and images are displayed. Those would be what would need to be cached.