note 55742 deleted from language.pseudo-types by felipe
| From: | felipe@php.net | Date: | Sun, 23 Mar 2008 23:02:55 +0000 |
| Subject: | note 55742 deleted from language.pseudo-types by felipe | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-137412@lists.php.net to get a copy of this message | ||
Note Submitter: mr dot lilov at gmail dot com
----
This's a useful example about callback, Look at the session_set_save_handler function.
From: http://www.zend.com/zend/spotlight/code-gallery-wade8.php
<?php
/* Create new object of class */
$ses_class = new session();
/* Change the save_handler to use the class functions */
session_set_save_handler (array(&$ses_class, '_open'),
array(&$ses_class, '_close'),
array(&$ses_class, '_read'),
array(&$ses_class, '_write'),
array(&$ses_class, '_destroy'),
array(&$ses_class, '_gc'));
/* Start the session */
session_start();
class session
{
/* Define the mysql table you wish to use with
this class, this table MUST exist. */
var $ses_table = "sessions";
/* Change to 'Y' if you want to connect to a db in
the _open function */
var $db_con = "Y";
/* Configure the info to connect to MySQL, only required
if $db_con is set to 'Y' */
var $db_host = "localhost";
var $db_user = "username";
var $db_pass = "password";
var $db_dbase = "dbname";
/* Create a connection to a database */
function db_connect() {
............
}
/* Open session, if you have your own db connection
code, put it in here! */
function _open($path, $name) {
.............
}
/* Close session */
function _close() {
..............
}
/* Read session data from database */
function _read($ses_id) {
.................
}
/* Write new data to database */
function _write($ses_id, $data) {
...........
}
/* Garbage collection, deletes old sessions */
function _gc($life) {
............
}
}
?>