Hello.php - My First PHP Script
This section provides a tutorial example on how to write the first PHP script, Hello.php, and run it with PHP CLI and PHP CGI.
Use any text editor like notepad, and enter the first PHP script, Hello.php:
Hello <?php echo "world!"; ?>
Run it with PHP CLI first:
Then run it with PHP CGI:
Content-type: text/html; charset=UTF-8
As expected, both versions of the PHP engine worked nicely.
PHP CGI version did generate the HTTP response header for me.
But note that the "Content-type" in PHP 7.0 is set to "UTF-8", which is different
than PHP 5.6. See output from PHP 5.6:
Last update: 2016.
Table of Contents
About This Book
►Introduction and Installation of PHP 7.0
What Is PHP?
Downloading and Installing PHP 7.0 for Windows
"php -help" - Command Line Options
"php -m" - Built-in Modules
"php -i" - PHP Engine Information
php.ini - PHP Runtime Configuration
►Hello.php - My First PHP Script
Downloading and Installing PHP Documentation
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
Configuring and Sending out Emails
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
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
Introduction of Class and Object
Integrating PHP with Apache Web Server
PDF Printing Version