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Create new session, or re-initialize existing session. Called internally by PHP when a session starts either automatically or when session_start () is invoked. This method wraps the internal PHP save handler defined in the session.save_handler ini setting that was set before this handler was set by session_set_save_handler (). If this class is extended by inheritance, calling the parent open ...
Mar 17, 2026 · SessionHandler is a special class that can be used to expose the current internal PHP session save handler by inheritance. There are seven methods which wrap the seven internal session save handler callbacks (open, close, read, write, destroy, gc and create_sid).
The SessionHandler class Introduction SessionHandler is a special class that can be used to expose the current internal PHP session save handler by inheritance. There are seven methods which wrap the seven internal session save handler callbacks (open, close, read, write, destroy, gc and create_sid).
This method wraps the internal PHP save handler defined in the session.save_handler ini setting that was set before this handler was set by session_set_save_handler (). If this class is extended by inheritiance, calling the parent open method will invoke the wrapper for this method and therefore invoke the associated internal callback.
When a plain instance of SessionHandler is set as the save handler using session_set_save_handler(3) it will wrap the current save han- dlers. A class extending from SessionHandler allows you to override the methods or intercept or filter them by calls the parent class meth- ods which ultimately wrap the interal PHP session handlers.
Jun 25, 2025 · The purpose of this document is to provide a complete overview of the PHP session handler life cycle updated to version 7.0 or above. In particular, I want to emphasize what methods and in what order are called when the native PHP functions are used for session management. I created this document because the information on the web and the official documentation are very superficial on this ...
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SessionHandler — The SessionHandler class SessionHandler::close — Close the session SessionHandler::destroy — Destroy a session SessionHandler::gc — Cleanup old sessions SessionHandler::open — Initialize session SessionHandler::read — Read session data SessionHandler::write — Write session data
