session_module_name Get and/or set the current session module &reftitle.description; stringfalsesession_module_name stringnullmodule&null; session_module_name gets the name of the current session module, which is also known as session.save_handler. &reftitle.parameters; module If module is specified and not &null;, that module will be used instead. Passing "user" to this parameter is forbidden. Instead session_set_save_handler has to be called to set a user defined session handler. &reftitle.returnvalues; Returns the name of the current session module, &return.falseforfailure;. &reftitle.changelog; &Version; &Description; 8.0.0 module is nullable now. 7.2.0 It is now explicitly forbidden to set the module name to "user". Formerly, this has been silently ignored.