What are some common reasons for a PHP website not displaying the most recent content without manual refresh?

One common reason for a PHP website not displaying the most recent content without manual refresh is due to caching mechanisms being implemented. To solve this issue, you can add cache-control headers to your PHP script to ensure that the browser always fetches the latest content from the server. 

// Add cache-control headers to prevent caching
header("Cache-Control: no-cache, must-revalidate");
header("Expires: Sat, 26 Jul 1997 05:00:00 GMT");

Keywords

PHP caching browser cache server cache content expiration

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