I think the reasons for this problem are as follows:
1. Cookie disabled on the client
2. a browser error occurs and the cookie cannot be accessed for the moment.
3. The session. use_trans_sid in PHP. INI is 0 or the -- enable-trans-Sid option is not
Compared with cookies, Session is stored on the server, which is relatively secure and has no storage length limit as Cookie does. This article briefly introduces the use of Session.
The Session is stored on the server as a text file, so the client
The Session variable cannot be transmitted to the next page. Solution: session. use_trans_sid = 1, usetranssid
Appendix: Abstract========================================================== ================================Friends who have used SESSION
Compared with cookies in PHP Development, session is stored on the server side, which is relatively secure and has different storage length limits than Cookie, this article briefly introduces the use of session compared to cookies in PHP Development.
This article mainly introduces common vulnerabilities and code examples in PHP programming. This article summarizes some common vulnerabilities in programming and explains how to prevent them, if you need it, you can refer to it. with the wide use
The cookie and session, generally considered to be two separate things, the session is to keep the state on the server side of the scheme, and the cookie is the client to maintain the state of the scheme. But why can't I get a session by disabling
Friends who have used SESSION in PHP may encounter such a problem. SESSION variables cannot be transferred across pages. This has plagued me for a few days and finally solved this problem by checking the information. I think the reasons for this
PHP Session Getting Started (including video ). Compared with cookies, Session is stored on the server, which is relatively secure and has no storage length limit as Cookie does. This article briefly introduces the use of Session. As Sessi compares
Session solution for disabling cookie on the php client sessionID (to) client [to]
PHP 12:12:06 read 31 Comments 0 font size: Large and small subscriptions
Friends who have used SESSION in PHP may encounter such a problem. SESSION variables
1.session Note points:@session_start ();//This configuration needs to be noted that the session opening will have an impact, so use the error suppressor to limit "and use php.ini to automatically open the session"Output problem before session_start (
Leave the Cookie in the use of SESSION-PHP SESSION can not cross-page transfer problem solution leave the cookie using session php session can not cross-page transfer problem solution In PHP has used session instead of cookie.
Solution to
In PHP, the associated configuration allows the session to exist without relying on cookies. This is because:
session, stored on the server side (the default file storage session), based on the session ID provided by the client to the user's file,
For a cookie, if we want to verify that the user is logged in, we must save the user name and password in the cookie (possibly the MD5 encrypted string) and verify it each time the page is requested. If the user name and password are stored in the
The Session is stored on the server as a text file, so the client is not afraid to modify the Session content. In fact, in the Session file on the server side, PHP automatically modifies the session file permissions, only retaining the system read
This article provides a detailed analysis of the PHP Session user login function. For more information, see
This article provides a detailed analysis of the PHP Session user login function. For more information, see
Compared with cookies,
A solution to the problem of a session in PHP that cannot be passed across pages
A friend who has used a session in PHP may encounter a problem where session variables cannot be passed across pages. It upset me for a few days, and I finally
Session.use_trans_sid PHP session Sesionid and cookies
Attached: Abstracts
============================================================A friend who has used a session in PHP may encounter a problem where session variables cannot be passed
Many people on the Web have answered: Modify the session.gc_maxlifetime in the PHP configuration file. If you want to learn more about the session recycling mechanism, read on. (This article Environment php5.2)Overview: each time a PHP request, a 1/1
Because the session is stored as a text file on the server side, the client is not afraid to modify session content. In fact, the server-side session file, PHP automatically modify the session file permissions, only the system to read and write
cookie|session| Solution | Problem throw away cookie use session
Solution to a problem in PHP where session cannot spread across pages
Friends who have used sessions in PHP may encounter a problem where the session variable cannot be passed across
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