What to do if php session jump fails

php session jump failure can only be solved by: 1. Check the access permissions of "session.save_path" and modify it; 2. Modify the settings of "session.use_trans_sid" and "session.use_only_cookies".

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Generally, cross-page session failure occurs The situation is basically related to the configuration of PHP:

1. session.save_path has insufficient access rights, or there is a problem with the path;

2. Setting issues with session.use_trans_sid and session.use_only_cookies.

Check php.ini:

Found that the path is normal and the file The session value is also accurately recorded in it, so session.save_path is no problem.

session.use_trans_sid and find:

transfer means saving session information on the client through cookies, and then automatically bringing the cookie information when sending a request to the server , so that the server can read it. This is a commonly used method.

session.use_trans_sid indicates whether to use the URL to pass the session, so if the session.use_trans_sid value is 0, and the user browser If cookies are disabled, the session will become invalid across pages.

But after setting session.use_trans_sid to 1, the session still fails, so you need to check session.use_only_cookies, found:

# session.use_only_cookies indicates whether to only use cookies to pass session, so if it is set to 1, evensession.use_trans_sid=1, URL passing is still not used.

# Therefore, session. use_trans_sid=1, session.use_only_cookies=0, the URL delivery method can be enabled.

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