In PHP, Web page load every time from browser cache

Question

I added code into my website pages for browser cache control on live server. But I didn't get any response from my browser. Every time load my page from the browser cache.

Please, Anybody, help me?


$ts = gmdate("D, d M Y H:i:s") . " GMT";
header("Expires: $ts");
header("Last-Modified: $ts");
header("Pragma: no-cache");
header("Cache-Control: no-store");
header('Cache-Control: max-age=30000');

$file_last_mod_time = filemtime(__FILE__);

$content_last_mod_time = 1520949851;

$etag = '"' . $file_last_mod_time . '.' . $content_last_mod_time . '"';

header('Cache-Control: max-age=86400');

header('ETag: ' . $etag);

if(isset($_SERVER['HTTP_IF_NONE_MATCH'])) {
    if($_SERVER['HTTP_IF_NONE_MATCH'] == $etag) {
        header('HTTP/1.1 304 Not Modified', true, 304);
        exit();
    }
}

Right, Can we control browser cache on server server using above code? — Amit Shakya, Jul 17 '19 at 10:44
Because i am facing cache problem every time while i make to change any thing on website. it's not appear without head refresh. — Amit Shakya, Jul 17 '19 at 10:46
@AmitShakya can you share some HTML and/or Javascript of how you are loading that content? — wolmi, Jul 17 '19 at 10:48
https://stackoverflow.com/questions/118884/how-to-force-the-browser-to-reload-cached-css-js-files — treyBake, Jul 17 '19 at 10:49
https://developers.google.com/web/fundamentals/performance/optimizing-content-efficiency/http-caching — Amit Shakya, Jul 17 '19 at 10:54
@AmitShakya I assume you already found https://stackoverflow.com/questions/8937447/force-cache-refresh-after-deployment — Erik Baars, Jul 17 '19 at 11:10

score 0 · Answer 1 · answered Jul 17 '19 at 12:09

0

The same thing happened with me and I solved it by using this method. Create a file called clear.php, Paste the following code and Run.

<?php
opcache_reset();
?>

answered Jul 17 '19 at 12:09

Samir Patel

167
1
7

In PHP, Web page load every time from browser cache

1 Answers1