PHP Client session solution after cookie is disabled-PHP source code

The cookie itself is written on the client. However, if the client browser disables the cookie, the cookie cannot be used normally. In this case, we can use session instead, I hope to help you. The cookie itself is written on the client. However, if the client browser disables the cookie, the cookie cannot be used normally. In this case, we can use session instead, I hope to help you.

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By default, the session in PHP uses the Cookie of the client to save the session id. Therefore, when the cookie of the client fails, the session will be affected. It must be noted that the session does not necessarily depend on the cookie, which is also a bit better than the cookie. When the Cookie on the client is disabled or a problem occurs, PHP automatically attaches the session id to the URL, so that the session variable can be used across pages through the session id. However, this attachment also has certain conditions, that is, "session. use_trans_sid = 1 in php. ini or the -- enable-trans-sid option is enabled during compilation ".
Therefore, we can leave the cookie to use the session, that is, assume that the session is used when the user closes the cookie. There are several ways to implement the session:

Method 1: Add a PHPSESSID = $ sid on each hyperlink

The Code is as follows:

// Prevent new sessions from being generated when the initial Page is returned If (isset ($ _ GET ["PHPSESSID"]) { Session_id ($ _ GET ["PHPSESSID"]); } // Start a session Session_start (); // Obtain the session_id () of the current session () $ Sid = session_id (); // Add the PHPSESSID = $ sid parameter to each link Other pages can be obtained as follows: If (isset ($ _ GET ["PHPSESSID"]) { // Set the current session to the initial session, and the session_id () is consistent. Session_id ($ _ GET ["PHPSESSID"]) } Session_start ();

Method 2: Use the SID constant to replace PHPSESSID = $ sid on the Link (the SID value is similar to PHPSESSID = sddg34r593dfdlksrewr)

The Code is as follows:
If (isset ($ _ GET ["PHPSESSID"]) { Session_id ($ _ GET ["PHPSESSID"]); } // Start a session Session_start (); Other pages can be obtained as follows: If (isset ($ _ GET ["PHPSESSID"]) { // Set the current session to the initial session, and the session_id () is consistent. Session_id ($ _ GET ["PHPSESSID"]) } Session_start ();

Method 3: Use session. use_trans_sid = 1, which is configured in php. ini.

1. Set session. use_trans_sid = 1 in php. ini or enable the -- enable-trans-sid option when compiling, so that PHP can automatically pass the session id across pages.
2. Manually pass session IDs through URL values and hidden forms.
3. Save session_id in the form of files and databases, and manually call it during the cross-page process.

The Code is as follows:
Index. php Session_start (); $ _ SESSION ['name'] = "Aseoe "; $ Sn = session_id (); $ Url = "." "index2.php? S = ". $ sn." "> next page "; Echo $ url; ?> Index2.php $ _ GET ['s ']); Session_start (); Echo "the value of the passed session variable name is:". $ _ SESSION ['name']; ?>