The use of session in PHP_PHP tutorial

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

2. Save

$_SESSION[]=;

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

Example:

$_SESSION['']="";

3. Take out the specified

Example:

$uName=$_SESSION[''];

4. Delete the specified

Example:

($_SESSION['']);

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

6. Get session_id

session_id();

SID; //Constant

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