Should I store sessions in database?
The most common and reasonable pattern to store sessions in database is when you have several frontend servers, so you need a shared session storage for them. For downvoters: a file in filesystem isn’t less secured than a record in database. The idea is that sessions can’t be hijacked.
What is the purpose of $_ session?
The purpose for $_SESSION is to store data that you (as the web application developer) would like to have preserved across page loads.
How does Memcached work in a PHP application?
A web browser requests a page, and the server runs PHP code to build it. PHP asks Memcached for the page’s data via a Memcached extension. If the data is cached, it is sent back to PHP. If it isn’t cached, Memcached sends the query to the database, returns the data to PHP, and stores it for the next request.
Where do I find Memcached extensions in cPanel?
In the WHM sidebar menu, select EasyApache 4 in the Software section. Click the Customize button in Currently Installed Packages. Select the PHP Extensions tab and search for “memcached”. cPanel shows you extensions for installed PHP versions. Click the switch on those you would like to install.
What does session set save handler do in PHP?
session_set_save_handler () sets the user-level session storage functions which are used for storing and retrieving data associated with a session. This is most useful when a storage method other than those supplied by PHP sessions is preferred, e.g. storing the session data in a local database. This function has two prototypes.
Where is the serialized session data stored in PHP?
This callback receives the current session ID a serialized version the $_SESSION superglobal. The serialization method used internally by PHP is specified in the session.serialize_handler ini setting. The serialized session data passed to this callback should be stored against the passed session ID.