note 112082 added to sessionhandlerinterface.open

This method should acquire an exclusive lock on the resource that is about to be used to read and write the session data. The lock should only be released in the close method. Note that this will effectively serialize parallel requests, which affects performance for a single user session. Not locking the resource would on the other hand allow for race conditions if two or more parallel requests change the session data. ---- Server IP: 213.172.110.14 Probable Submitter: 178.26.46.21 ---- Manual Page -- http://php.net/manual/en/sessionhandlerinterface.open.php Edit -- https://master.php.net/note/edit/112082 Del: integrated -- https://master.php.net/note/delete/112082/integrated Del: useless -- https://master.php.net/note/delete/112082/useless Del: bad code -- https://master.php.net/note/delete/112082/bad+code Del: spam -- https://master.php.net/note/delete/112082/spam Del: non-english -- https://master.php.net/note/delete/112082/non-english Del: in docs -- https://master.php.net/note/delete/112082/in+docs Del: other reasons-- https://master.php.net/note/delete/112082 Reject -- https://master.php.net/note/reject/112082 Search -- https://master.php.net/manage/user-notes.php