Example of using session in php_PHP tutorial

1. Initialization (must be used before using session, just use one for each page)

Copy code The code is as follows:

session_start();

2. Save

Copy code The code is as follows:

$_SESSION[$sessionName]=$value;

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

Example:

Copy code The code is as follows:

$_SESSION['LoginUser']="zs";

3. Take out the specified

Example:

Copy code The code is as follows:

$uName=$_SESSION['LoginUser'];

4. Delete specified

Example:

Copy code The code is as follows:

unset($_SESSION['LoginUser']);

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

Copy code The code is as follows:

session_destroy();

6. Get session_id

Copy code The code is as follows:

$session_id=session_id();
$ session_id=SID; //Constant

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