Php session usage example _ PHP Tutorial

Php session usage example. 1. initialize (use before using session, and use one page.) copy the code as follows: session_start (); 2. the code for saving the Copy code is as follows: $ _ SESSION [$ session 1. initialization (before using session, use one page)

The code is as follows:

Session_start ();

2. Save

The code is as follows:

$ _ SESSION [$ sessionName] = $ value;

(The value can be double, bool, int, array, or object data)

Example:

The code is as follows:

$ _ SESSION ['loginuser'] = "zs ";

3. retrieve the specified

Example:

The code is as follows:

$ UName = $ _ SESSION ['loginuser'];

4. delete the specified

Example:

The code is as follows:

Unset ($ _ SESSION ['loginuser']);

5. delete all sessions (delete the session file corresponding to the current browser)

The code is as follows:

Session_destroy ();

6. get session_id

The code is as follows:

$ Session_id = session_id ();
$ Session_id = SID; // constant

Compile (use before using session, and use one page.) the code is as follows: session_start (); 2. Save the code as follows: $ _ SESSION [$ session...