Bug #78207 [Opn->Nab]: setrawcookie does not not behave like setcookie when overwriting

Edit report at https://bugs.php.net/bug.php?id=78207&edit=1 ID: 78207 Updated by: daverandom@php.net Reported by: nico at billiotte dot fr Summary: setrawcookie does not not behave like setcookie when overwriting -Status: Open +Status: Not a bug Type: Bug Package: Unknown/Other Function Operating System: OSX + linux PHP Version: 7.3.6 Block user comment: N Private report: N New Comment: Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php This is the correct, intended behaviour - it is caused by the specific value for the cookie, rather than the general behaviour of the function. If you turn on error reporting, you will find that the following warning is emitted: > Warning: Cookie values cannot contain any of the following ',; \t\r\n\013\014' in ... This is due to the syntax of the Cookie header in the HTTP protocol. The solution to this problem is to use setcookie() instead of setrawcookie(), which will correctly encode the values. This issue arises because the JSON generated by the first request does not contain a comma, the second request adds a second element separated by a comma. Previous Comments: ------------------------------------------------------------------------ [2019-06-25 15:12:25] nico at billiotte dot fr Description: ------------ --- From manual page: https://php.net/function.setrawcookie --- Test script: --------------- $id = $_REQUEST['id']; $val = $_REQUEST['val']; if( isset($_COOKIE['testcookie']) ){ $cookie = json_decode($_COOKIE['testcookie'], true); } $moncookie[$id] = $val; setrawcookie('testcookie', json_encode($cookie), 0, '/'); Expected result: ---------------- send id = 1 & val = "foo" cookie = {1:foo} -> correct then resend id = 2 & val = "bar" cookie should contain {1:foo, 2:bar} Actual result: -------------- the cookie remains nothing changes {1:foo} -> not correct change setrawcookie by setcookie and add urldecode() and everything is fine you can "update" the cookie ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=78207&edit=1