I am a fresher to web development.
In my application I need to have caching so any one can explain me how to do caching of PHP pages in detail?
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I am a fresher to web development.
In my application I need to have caching so any one can explain me how to do caching of PHP pages in detail?
Caching in PHP can be mean storing the results of a particular function last time it was called in case that function is called multiples times in the same script (with the same parameters).
However I think the main and more powerful meaning is storing the complete output of a dynamically generated page, and serving this up when the page is requested again instead of actually running the full PHP script to regenerate that content.
For pages I want to cache, I have an AJAX command that writes the content into a database after the page is generated. It also adds an expiry time – say time() + 20 (expire in 20 seconds).
Then I add a condition at the top of the page to check for an unexpired cache for the page in the database. If found it returns that, otherwise it continues to re-generate the full page.
This article helped me get started:
http://simas.posterous.com/php-data-caching-techniques