note 85341 deleted from function.session-name by googleguy
| From: | googleguy@php.net | Date: | Wed, 16 Jan 2013 05:28:20 +0000 |
| Subject: | note 85341 deleted from function.session-name by googleguy | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-193089@lists.php.net to get a copy of this message | ||
Note Submitter: xemc at yahoo dot com
----
Here's a sample program I made to explore the operation of the session stuff. One thing I
wanted to do was switch sessions in the middle of a script - where session_name doesn't
automatically create or resume the corresponding session id... (anyone have a better idea?)
<?php
if ( $_REQUEST['sname'] ) {
session_name($_REQUEST['sname']);
}
session_start();
$messages = "";
function show( $str ) { global $messages; $messages .= $str; }
function show_sess_vars() {
foreach ( $_SESSION as $key => $val ) {
show("Session var '$key': \t'$val'\n");
}
}
show("Session name: \t" . session_name() . "\n");
show("Session ID: \t" . session_id() . "\n");
foreach ( $_REQUEST as $key => $val ) {
if ( $key == 'regenerate' )
{
session_regenerate_id();
show("session_regenerate_id();\n");
show("Session name: \t" . session_name() . "\n");
show("Session ID: \t" . session_id() . "\n");
}
else if ( $key == 'clear' )
{
$_SESSION = array();
show("\$_SESSION = array();\n");
}
else if ( $key == 'switch' )
{
show("Will attempt to switch session name.. vars:\n");
show_sess_vars();
session_write_close();
$res = session_name($val);
show("session_name($val) - res: $res\n");
session_start();
show("Session name: \t" . session_name() . "\n");
show("Session ID: \t" . session_id() . "\n");
}
else if ( $key == 'switch2' )
{
show("Will attempt to switch session name.. vars:\n");
show_sess_vars();
session_write_close();
show("session_write_close();\n");
$sess_id = $_COOKIE[$val];
if ( $sess_id ) {
show("session '$val' exists, resuming..\n");
//unset($_SESSION); // to make sure - this should be reloaded below
session_name( $val );
session_id( $sess_id );
session_start(); // fills $_SESSION from the named session
} else {
show("creating new session '$val'...\n");
session_name( $val );
session_start();
session_regenerate_id(); // create new (copy of old), leave old alone
$_SESSION = array(); // wipe data clean for a fresh session
show("regenerated ID and wiped SESSION superglobal\n");
}
show("Session name: \t" . session_name() . "\n");
show("Session ID: \t" . session_id() . "\n");
}
else
{
if ( $_COOKIE[$key] ) {
show("Cookie: \t'$key': \t'$val'\n");
} else {
show("Setting session var: \t'$key': \t'$val'\n");
$_SESSION[$key] = $val;
}
}
}
show("----\nSession vars:\n");
show_sess_vars();
if ( false ) {
session_write_close();
session_name("edit_assembly");
session_start();
show("Session name: \t" . session_name() . "\n");
show("Session ID: \t" . session_id() . "\n");
show_sess_vars();
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
<html>
<head>
<title> PHP session testing </title>
<style type='text/css'>
body { background-color: gray; }
#content { background-color: white; width: 70%; margin: 1em auto 1em auto; padding: 2em;
font-family: Verdana, monospace; font-size: 10pt; }
</style>
</head>
<body>
<div id='content'>
<h1> PHP session test: </h1>
<pre><?php echo $messages; ?></pre>
</div>
</body>
</html>