note 125549 added to function.session-write-close

Feedback : I had a problem on a "modern" app using a JS front (Vue) and a PHP back querying a MySQL DB. All data is retrieved asynchronously via webservices (JS fetch()). Sessions are used to easily manage user authentication : just a session_start() in an included script, some controls about user, and no more attention about session. Multiple fetch() were executed sequentially by the browser with pending status : ws.php?action=getSomething 3s 3s [===] ws.php?action=getSomething2 2s 5s [==] ws.php?action=getSomething3 4s 9s [====] ws.php?action=getSomething4 2s 11s [==] Where I hoped full async : ws.php?action=getSomething 3s 3s [===] ws.php?action=getSomething2 2s 2s [==] ws.php?action=getSomething3 4s 4s [====] ws.php?action=getSomething4 2s 2s [==] Finally, I obtain this 2nd case full async by using session_write_close() in ws.php as soon as I need no more to write to $_SESSION and before executing long SQL queries. ---- Server IP: 45.112.84.4 Probable Submitter: 45.91.156.130 (proxied: 82.65.8.175) ---- Manual Page -- http://php.net/manual/en/function.session-write-close.php Edit -- https://master.php.net/note/edit/125549 Del: integrated -- https://master.php.net/note/delete/125549/integrated Del: useless -- https://master.php.net/note/delete/125549/useless Del: bad code -- https://master.php.net/note/delete/125549/bad+code Del: spam -- https://master.php.net/note/delete/125549/spam Del: non-english -- https://master.php.net/note/delete/125549/non-english Del: in docs -- https://master.php.net/note/delete/125549/in+docs Del: other reasons-- https://master.php.net/note/delete/125549 Reject -- https://master.php.net/note/reject/125549 Search -- https://master.php.net/manage/user-notes.php