Problem with HTTP Caching...?

Posted on 16th Feb 2014 07:03 pm by admin

Hi there, im trying to implement caching. But it doesn't always work.
I post it here because there is no Client-Side HTTP topic...

Code: private function setLastModified ($aTimestamp) {
$this->addHeader('Last-Modified', gmdate('r',$aTimestamp), True);
}

private function setExpires ($aTimestamp) {
$this->addHeader('Expires', gmdate('r',$aTimestamp), True);
}

private function setPragma ($aPragma) {
switch ($aPragma) {
case conResponce_NO_CASHING: $this->addHeader('Pragma', 'no-cache', True); break;
case conResponce_PRIVATE: $this->addHeader('Pragma', 'private', True); break;
case conResponce_PUBLIC: $this->addHeader('Pragma', 'public', True); break; }
}

And this result in on the client-side:


http://localhost/CMS%20Test/index.php?type=4&html=test

Request Headers
Accept:application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
Cache-Control:max-age=0
Referer:http://localhost/CMS%20Test/index.php
User-Agent:Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/532.0 (KHTML, like Gecko) Chrome/3.0.195.27 Safari/532.0


Response Headers
Cache-Control:public
Connection:Keep-Alive
Content-Type:text/html
Date:Tue, 10 Nov 2009 12:20:58 GMT
Expires:Tue, 10 Nov 2009 12:21:58 +0000
Keep-Alive:timeout=5, max=74
Last-Modified:Tue, 10 Nov 2009 12:07:03 +0000
Pragma:public
Server:Apache/2.2.11 (Win32) PHP/5.3.0
Transfer-Encoding:chunked
X-Powered-By:PHP/5.3.0


Is:
Expires:Tue, 10 Nov 2009 12:21:58 +0000 wright?

Or does it have to look like:
Expires:Tue, 10 Nov 2009 12:21:58 GMT

I'm using: gmdate('r',$aTimestamp) and it's on the PHP site. Also i found this in a PHP book, but a lot of code of the book and the php site doesn't work at all or not properly. Im i the only one with this problems?
And why don't they remove "examples" that doesn't work?


Thanx...

Your Answer:

Login to answer

Other forums

Save User Inputs while javascript reloading!
hi..
i have written a PHP code in which i reload the page when user selects a value in dropdown..

Need help making a script that moves data into acrhive table
Hi,

I'm kinda new to php/mysql

And i wrote a simple script to store sales lead for a b

Bandwidth monitoring?
Hi guys,

I need a little information I have written a php app and I occurred to that I need

Implementing Single Sign-On using SAML 1.1, x.509, LDAP in C#.net
Hi, I got a requirement from the client i.e implementing single sing on using SAML 1.1( LDAP &

From Header Showing 'Unkown' In Hotmail? Why?
Code: $to = $row_GetID['email_addr'].',sales@mywebaddress.co.uk';
$subject = 'Thank you for you

Extending Exception to contain method name
I was wondering, if there's a way to extend Exception in such a way, that it would contain name of a

Displaying different page content, depending on the logged in user.
Hi all, I am new to ASP.net (and web development in general), and have a question about how I can di

PEAR in appliactiond development
When I was picking up PHP I went from procedural programming, fairly quickly into OOP, then after wr

Images in email problem
I found this script for sending emails, it works but if the email has <img src="image.jp

Using the $_GET variable to view certain records
Hello,

First let me explain my problem, I have 2 pages the first page pull a list of Guide ti