Use of PHP session_PHP tutorial

1. Session can save any type of data. Because it is stored on the server (that is, it has been serialized).

2. Session operation mechanism

Session_start(); //The session has been opened, which is equivalent to reading the session information

$_SESSION['favcolor'] = 'green';
$_SESSION['animal'] = 'cat';
$_SESSION['time'] = time();

// Works if session cookie was accepted
echo '
page 2';

page2.php
echo $_SESSION['favcolor']; // green
echo $_SESSION['animal']; // cat
echo date('Y m d H:i:s', $_SESSION['time']);

Session_start declares the $_SESSION variable, assigns a value to $_SESSION -> Operates the $_SESSION variable -> writes the data in $_SESSION to the data space, and releases the variable.

To delete $_SESSION, you cannot unset it, you can make it empty: $_SESSION = array();

Delete the current $_SESSION data file session_destroy(), in the default system path C:windos/Temp. This directory can be found in your browser

Delete the cookie technology used in the browser and delete the sessionID

setCookie('PHPSESSID',time()-1);

Use the three together to completely delete the session

3. Cycles may be inconsistent.

http://www.bkjia.com/PHPjc/477496.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/477496.htmlTechArticle1. Session can save any type of data. Because it is stored on the server (that is, it has been serialized). 2. Session operation mechanism session_start(); //The session has been opened, which is equivalent to...