OBJECT ORIENTED PROGRAMMING CONCEPTS IN PHP PPT

D E V E L O P M E N T A N D P R O P E R T I E S O F C + + ■ 3
䊐 Historical Perspective
The C++ programming language was created by Bjarne Stroustrup and his team at Bell Laboratories (AT&T, USA) to help implement simulation projects in an object-ori- ented and effici[r]

CREATE TRIGGER insert_resources AFTER INSERT ON tblresources BEGIN UPDATE tblresources SET whenaltered = DATETIME'NOW','LOCALTIME' WHERE id = new.id; END; CREATE TRIGGER update_resources[r]

protected $message; protected $code; protected $file; protected $line; private $string; private $trace; public function __construct$message = null, $code = 0; public function __toString;[r]

Allowing undeclared data members also undermines another basic con- cept of OOP, namely inheritance. It’s hard to see how a derived class might inherit undeclared instance variables.
One might argue, though, that these magic methods make PHP easier to use and this convenience offsets any[r]

_USING METADATA_ The utility methods that make use of metadata are found in Listing 15-9: /** Return clean posted data - check variable names same as field names */ public function clean[r]

NOTE The assignment of a value to $quality shows that data members may be initialized upon declaration, but they must be initialized with constant values. You could not, for instance, invoke a PHP function call or a method.
If you are going to output an image, you need to know whether i[r]

_See SPL_ Standardized General Markup _Lan-guage SGML.. _See UDF _ _user programmer.[r]

TRANG 8 _As an introductory book on Cocoa development, Learning Cocoa with Objective-C _ accomplishes the following: ● Introduces you to the concepts of object-oriented programming with [r]

To get an overview of this class, find all its data members and methods listed here: //data members private $strSQL private $databasename private $connection private $result // public me[r]

These tags are properly nested one within the other, and each _tag has a matching end tag, so we may say that this XML document is _ _well-formed._ _READING THE FEED_ In order to read th[r]

For this reason, you need a public method, _ _sometimes called an accessor method, in order to retrieve that private variable:_ public function getFileArray{ return $this->filearray } In[r]

Happily, computer scientists — and thousands of geeks — have invented object orientation and numerous other concepts that reduce the level of complexity at which programmers have to work. Using powerful abstractions makes the job simpler and far less error-prone than it used to be. [r]

Xem Thêm " REVIEWING ACCEPTING AND REJECTING CHANGES "

Xem Thêm " CHAPTER 2  THE BASICS AND GETTING SET UP "

In short, this book: Brings together information from a variety of sources for a comprehen-sive overview of OO PHP Explains OO concepts through concrete examples, not in the abstract Tak[r]

With _Object-Oriented PHP_, you’ll learn to: • Promote code reuse by creating your own classes and using built-in classes • Customize and improve classes through inheritance • Simplify d[r]