Creating and Managing Sessions in PHP Scripts
This chapter provides tutorial examples and notes about session. Topics include understanding of the session concept; writing scripts to create and use a session; storing data in the current session; managing session IDs as cookies and URL transparent parameters.
What Is a Session
How Sessions Are Supported in PHP
SessionPage*.php - Session Test Script Pages
Running Session Test Script Pages
Managing Session IDs without Cookies
Where Is Session Data Stored
- A session ID must be passed between HTTP requests and responses to link them into a single sequence.
- Passing the session ID as a cookie value is more secure.
- Passing the session ID as a transparent URL variable is less secure, because the session ID will be displayed
in the Web page address field.
- You must call the built-in function, session_start(), at the beginning of the PHP script
to start a new session, or continue with an existing session.
- The built-in array, $_SESSION, can be used to pass information from one script to another script that shares
the same session as the first script.
- Session data is persisted to the hard disk permanently on the server side.
Table of Contents
About This Book
Introduction and Installation of PHP 7.3
PHP Script File Syntax
PHP Data Types and Data Literals
Variables, References, and Constants
Expressions, Operations and Type Conversions
Conditional Statements - "if" and "switch"
Loop Statements - "while", "for", and "do ... while"
Function Declaration, Arguments, and Return Values
Arrays - Ordered Maps
Interface with Operating System
Introduction of Class and Object
Integrating PHP with Apache Web Server
Retrieving Information from HTTP Requests
►Creating and Managing Sessions in PHP Scripts
Sending and Receiving Cookies in PHP Scripts
Controlling HTTP Response Header Lines in PHP Scripts
Managing File Upload
MySQL Server Connection and Access Functions
Functions to Manage Directories, Files and Images
SOAP Extension Function and Calling Web Services
SOAP Server Functions and Examples
Localization Overview of Web Applications
Using Non-ASCII Characters in HTML Documents
Using Non-ASCII Characters as PHP Script String Literals
Receiving Non-ASCII Characters from Input Forms
"mbstring" Extension and Non-ASCII Encoding Management
Managing Non-ASCII Character Strings with MySQL Servers
Parsing and Managing HTML Documents
Configuring and Sending out Emails
Image and Picture Processing
Managing ZIP Archive Files
Managing PHP Engine and Modules on macOS
Managing PHP Engine and Modules on CentOS
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