Home  >  Article  >  php教程  >  Session life and cross-domain and cross-page --- small doubts and big problems (php)

Session life and cross-domain and cross-page --- small doubts and big problems (php)

WBOY
WBOYOriginal
2016-09-15 11:14:42887browse

The session disappears after crossing the page?


Points to note when storing sessions:

  1. Stored on the server side in the form of files.
  2. Limited life cycle, determined according to different server types.
  3. Storage content as serialized string

The content format stored in the session file is as follows:

 

 We can read some session information from the picture: for example

 There is a session with error and its value is empty; there is also a session with step and its value is 0, and so on.

Now that we know the principle mechanism of session, then, in order for session to be called across pages, several conditions must be met:

1. Turn on session.use_trans_sid, that is, find session.use_trans_sid
in the php configuration file php.ini and then change its value to 1 and remove the comment,

2. Since it is stored in the form of a file, the directory where the session file is saved must always exist and be writable. You can view the session information through phpinfo()
. The directory where session files are saved session.save_path.

Finally, restart php-fmt.

*Attach a screenshot of the session information at the end:

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn