Information in $_GET and $_REQUEST

PHP Tutorials - Herong's Tutorial Examples

∟Retrieving Information from HTTP Requests

∟Information in $_GET and $_REQUEST

This section provides a tutorial example on how to dump information stored in the $_GET array and the $_REQUEST array.

Now try this URL, http://localhost/HttpRequestDetails.php?lang=PHP&search. You should get:


Contents of $_GET:
   lang = PHP
   search = 

Contents of $_POST:

Contents of $_COOKIE:

Contents of $_REQUEST:
   lang = PHP
   search = 

Contents of $_SERVER:
   ......
   QUERY_STRING = lang=PHP&search
   ......

Notice that:

"?lang=PHP&search" attached at the end of the URL represents information submitted with the GET method.
"?lang=PHP&search" is parsed by the PHP engine into 2 pairs of names and values and stored in the $_GET array.
The PHP engine copied the same information from $_GET to $_REQUEST.

Exercise: Try to find a way to test how to provide information with the POST method and how to provide cookies.

Last update: 2019.

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

Introduction of Class and Object

Integrating PHP with Apache Web Server

►Retrieving Information from HTTP Requests

Predefined Variables Related to HTTP Requests

Operating System Information in $_SERVER

Web Server Information in $_SERVER

►Information in $_GET and $_REQUEST

Registering $_REQUEST Keys as Global Variables

Creating and Managing Sessions in PHP Scripts

Sending and Receiving Cookies in PHP Scripts

Controlling HTTP Response Header Lines in PHP Scripts

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

Configuring and Sending out Emails

Outdated Tutorials

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