Warning: Unknown: Failed to write session data using user defined save handler. (session.save_path: ) in Unknown on line 0

Question

I have a local PHP7 & Apache environment on my Mac. All my scripts from one site are showing this error at the end of the page:

Warning: Unknown: Failed to write session data using user defined save handler. (session.save_path: ) in Unknown on line 0

The error-log doesn't show more detail on the cause:

[Tue Oct 10 22:37:44.981703 2017] [php7:warn] [pid 17853] [client ::1:62267] PHP Warning:  Unknown: Failed to write session data using user defined save handler. (session.save_path: ) in Unknown on line 0

I checked my php.ini, since that "session.save_path" seems to be a reference to it, and there this parameter has the default value:

;session.save_path = "/tmp"

It's the lack of detail in this error that throws me off. How can I get closer to the cause of this? Trying to pin down where this is coming from.

https://bugs.php.net/bug.php?id=71070 your session handler is not accessing /tmp most likely due to permissions... — Unamata Sanatarai, Oct 10 '17 at 21:53
Interesting. `/tmp/` permissions are set to `drwxrwxrwt`, is that wrong? — Tiago, Oct 10 '17 at 21:59
Did you fix this with the new filerights ,.... plesae share the solution — snh_nl, Sep 03 '20 at 07:24

score 1 · Answer 1 · answered Aug 12 '19 at 08:57

I had same issue and realized that the replace query had quotes in its table name. The error was fixed after removing the single quotes.

Incorrect

replace into 'sessions' values('value1','value2','value3')

Correct

replace into sessions values('value1','value2','value3')

score -1 · Answer 2 · answered Aug 25 '22 at 06:33

-1

Just stop your Mysql Server and Apache Server. Than Restart your Apache Server First and then Restart your Mysql Server.

answered Aug 25 '22 at 06:33

Ali Shan

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Warning: Unknown: Failed to write session data using user defined save handler. (session.save_path: ) in Unknown on line 0

2 Answers2