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Inside this Book – PHP is a powerful scripting language that can be run by itself in the command line of any computer with PHP installed. However, PHP alone isn’t sufficient for building dynamic web sites. To use PHP on a web site, you need a server that can process PHP scripts. Apache is a free web server that, once installed on a computer, allows developers to test PHP scripts locally; this makes it an invaluable piece of your local development environment. Additionally, web sites developed with PHP often rely on information stored in a database, so it can be modified quickly and easily. This is a significant difference between a PHP site and an HTML site. This is where a relational database management system such as MySQL comes into play. This book’s examples rely on MySQL. I chose this database because PHP provides native support for it, and because MySQL is a free, open source project.
Inside this book –PHP for Absolute Beginners Second Edition PDF Book by Jason Lengstorf – A constructor method is a method that runs when a new object is created. The process of creating a new object is often called instantiation in technical terminology. To declare a constructor for a class, you declare a new method that must be called __construct() . Note that there are two underscore characters. If a class has a constructor method, the constructor method will run as a new object is instantiated. So, writing new Greeter() will call the constructor of Greeter . In the preceding test example, the constructor function takes an argument, so a value must be sent along when it is called. The received value is stored in a predefined property $greeting . That way, the received value will be remembered as long as the object lives.
PHP for Absolute Beginners Second Edition by Jason Lengstorf PDF : eBook Information
- Full Book Name – PHP for Absolute Beginners Second Edition
- Author of this Book – Jason Lengstorf
- Language – English
- Book Genre – Science Technology, Programming, Computer Science
- Download Format – PDF
- Size – 3.8 MB
- eBook Pages – 307
- Price – Free