object oriented programming concepts classes and objects
Tài liệu The Essence of Object-Oriented Programming with Java and UML pptx
Ngày tải lên :
20/12/2013, 21:16
...
member objects.
object
The basic unit of object orientation. An object is an
entity that has attributes, behavior, and identity. Objects are
members of a class, and the attributes and behavior ... encapsulated objects can respond to messages
and send their own messages to others objects in response. Objects in
the system interact via well-defined messages with other objects in
the system.
Object ... introduction to objects and the benefits of object-
oriented software development.
Chapter 2 covers the fundamental concepts of object orientation.
Object orientation has many important concepts, and of...
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No starch press object oriented PHP concepts techniques and code
Ngày tải lên :
24/01/2014, 15:45
... “include and reuse; don’t rewrite.”
In a sense, object- oriented programming (OOP) is just an extension of this
concept. Objects simplify web development by eliminating the need to cut,
paste, and ... Friday, May 5, 2006 2:25 PM
2
BASICS OF OBJECT- ORIENTED
PROGRAMMING
This chapter is aimed at an audience
unfamiliar with the basic concepts of
object- oriented programming (OOP).
The intent is to ... PageNavigator Class 57
Chapter 9: Database Classes 65
Chapter 10: Improvement Through Inheritance 75
Chapter 11: Advanced Object- Oriented Programming Concepts 91
Chapter 12: Keeping It Fresh 99
Chapter...
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OBJECT-ORIENTED PHP Concepts, Techniques, and Code- P1 doc
Ngày tải lên :
03/07/2014, 07:20
...
companion website).
With Object- Oriented PHP, youll learn to:
ã Promote code reuse by creating your own classes
and using built-in classes
ã Customize and improve classes through inheritance
ã ... Data
Lavin, Peter.
Object- oriented PHP : concepts, techniques, and code / Peter Lavin.
p. cm.
Includes index.
ISBN 1-59327-077-1
1. PHP (Computer program language) 2. Object- oriented programming ... Undefined 88
Implementation and Access 88
Iterating Through a MySQLResultSet 89
Where to Go from Here 89
11
ADVANCED OBJECT- ORIENTED PROGRAMMING
CONCEPTS 91
Abstract Classes 91
Private Methods...
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OBJECT-ORIENTED PHP Concepts, Techniques, and Code- P2 doc
Ngày tải lên :
03/07/2014, 07:20
... to an OO approach, Object- Oriented PHP can ease
the transition from procedural to object- oriented programming (OOP). Basic
concepts are introduced using simple but useful classes. In short, ... 111
__get and __set 112
Is It Worth It? 113
__isset and __unset 113
__call 114
__autoload 115
__sleep and __wakeup 116
__clone 116
Where’s Waldo? 117
clone 118
Aggregate Classes 119
A Get Method for Object ... excellent understanding of OOP and numerous classes that can
easily be reused in a variety of circumstances. But, more importantly, you’ll
be able to create your own classes and extend existing...
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OBJECT-ORIENTED PHP Concepts, Techniques, and Code- P3 ppsx
Ngày tải lên :
03/07/2014, 07:20
... central to OOP: classes, access modifiers, and
inheritance. Classes define objects, access modifiers determine how objects
can be used, and inheritance makes it easy to adapt objects for different ... “include and reuse; don’t rewrite.”
In a sense, object- oriented programming (OOP) is just an extension of this
concept. Objects simplify web development by eliminating the need to cut,
paste, and ... Friday, May 5, 2006 2:25 PM
2
BASICS OF OBJECT- ORIENTED
PROGRAMMING
This chapter is aimed at an audience
unfamiliar with the basic concepts of
object- oriented programming (OOP).
The intent is to...
- 10
- 359
- 0
OBJECT-ORIENTED PHP Concepts, Techniques, and Code- P4 docx
Ngày tải lên :
03/07/2014, 07:20
...
an object is passed to a function or method, but objects are now passed by
reference because of the implicit assignment. Prior to PHP 5, the default
behavior was to assign objects by value and ... Classes
The reflection classes included in PHP 5 provide ways to introspect objects
and reverse engineer code. The average web developer might be tempted
to ignore these classes, but Chapter ...
how objects are created and destroyed. The PHP 4 style of object creation
is still supported, but you are encouraged to use the new magic method
approach.
PHP 5 deprecates some existing object- related...
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OBJECT-ORIENTED PHP Concepts, Techniques, and Code- P5 ppsx
Ngày tải lên :
03/07/2014, 07:20
...
should you care? Because OO programming assumes that other programmers
may use your objects and vice versa.
Bruce Eckel refers to this as client programmers using objects created by
class creators.
1
... the variable
or instance of the object, and
new both allocates memory and, in association
with the class name, invokes the constructor. (When creating an object under
PHP 4, it is advisable ... this.
When properly ordered and created, a directory and its subdirectories
can function like a database and its tables; in fact, for some databases, a table
is a directory and its contents.
If...
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OBJECT-ORIENTED PHP Concepts, Techniques, and Code- P6 pot
Ngày tải lên :
03/07/2014, 07:20
... constructor
and may only be invoked from within the class. By calling it from within the
constructor, it need not be called directly, and the client programmer benefits
by having a fully-formed and ... is larger and then calculates the percentage reduction based on
the targeted thumbnail size. In other words, it determines whether the image’s
orientation is landscape or portrait and reduces ... situations, suppose you
have a mixture of
.pdf files and images in a specific directory and you want
to download all the
.pdf files and after that, display all the images. Once you
have...
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OBJECT-ORIENTED PHP Concepts, Techniques, and Code- P7 pot
Ngày tải lên :
03/07/2014, 07:20
... allocating and
freeing memory (as he is in a language like C++, for example), an automated
program must free up resources. The garbage collector determines when
objects are no longer used and then ... page, and the button
labeled >| displays the last page. In this particular example, the Next button
displays page 5, and the Prev button displays page 3.
Now look at Figure 7-1 again, and ... restrict how a variable is changed and how it is retrieved. They
help ensure the integrity of your data and the functionality of the class as a
whole. Get and set methods allow you to ignore...
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OBJECT-ORIENTED PHP Concepts, Techniques, and Code- P8 ppsx
Ngày tải lên :
03/07/2014, 07:20
... for the top and left borders and then a darker
color for the bottom and right borders outlines the links and creates the
illusion of depth.
Assign properties to the anchor pseudo -classes in ... how to use CSS classes to adjust the appearance of
the page navigator; this will greatly improve the reusability of the class.
(This isn’t directly related to object- oriented programming [OOP], ... $this->strlast);
}
Listing 7-2: Creating the Move Next and Move Last buttons
Current and Total Number of Pages
The navigator proper is complete, but information about the current page
and the total number of pages helps...
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OBJECT-ORIENTED PHP Concepts, Techniques, and Code- P9 doc
Ngày tải lên :
03/07/2014, 07:20
... develop fairly skeletal versions of these two classes, emphasizing
any unexplored areas of object- oriented programming (OOP). Nevertheless,
these classes will be perfectly fit for the task of ... sometimes difficult to identify objects, because
often what’s needed is something conceptual rather than something physical
and concrete. The database class or classes that we are going to create ... and let the two additional parameters—
$maxpagesshown
and
$params—default to 4 and an empty string, respectively. This means that
the navigator will show links to a maximum of four pages and...
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OBJECT-ORIENTED PHP Concepts, Techniques, and Code- P10 pdf
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03/07/2014, 07:20
...
that is an aggregate object. An aggregate object is an object that has at
least one data member that is itself an object. For example, if both
Player
and
Team are objects and Team contains Players, ... class.
The Standard PHP Library
These planned improvements to the MySQL classes use the Standard PHP
Library (SPL), a collection of classes and interfaces aimed at solving common
programming ... referred to as
a derived class, and its parent is called the base class. Parent classes are also some-
times referred to as superclasses and derived classes as subclasses.
OOPHP_02.book Page 76...
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OBJECT-ORIENTED PHP Concepts, Techniques, and Code- P11 potx
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03/07/2014, 07:20
...
try is thrown and
handled by the
catch. This is why a try/catch block is said to handle exceptions.
However, there are important differences between error trapping and
exception handling. The ... implementing the Iterator interface, and we explored the
concept of inheritance both for classes and for interfaces.
We’ve spent a lot of time creating database classes because they are
useful ... write a
rewind method and explicitly call it before repeating a while loop.
NOTE Learning about the Iterator interface is time well spent as a number of built-in classes
and interfaces inherit...
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OBJECT-ORIENTED PHP Concepts, Techniques, and Code- P12 pptx
Ngày tải lên :
03/07/2014, 07:20
... May 5, 2006 2:25 PM
11
ADVANCED OBJECT- ORIENTED
PROGRAMMING CONCEPTS
The previous two chapters introduced a
number of new object- oriented program-
ming (OOP) concepts. In the interest of
clarity, ... to read an RSS feed is a little
knowledge of how an RSS file is structured and an understanding of object-
oriented programming (OOP). You’ll be surprised at just how easy it is once
you’ve ... 99 Friday, May 5, 2006 2:25 PM
Advanced Object- Oriented Programming Concepts 93
flexibility of interfaces. PHP doesn’t allow multiple inheritance for classes;
a child class may have only one...
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OBJECT-ORIENTED PHP Concepts, Techniques, and Code- P13 pdf
Ngày tải lên :
03/07/2014, 07:20
... unquestionably be
much more difficult and require many, many more lines of code. Using
built-in objects hides the complexity of implementing web services and
makes their implementation much ... we’ll pass its URI to the simplexml_load_file func-
tion and create a
SimpleXMLElement object. This object has four built-in methods
and as many properties or data members as its XML source ... 2006 2:25 PM
104 Chapter 12
Google API
API stands for Application Programming Interface and is the means for
tapping into the Google search engine and performing searches program-
matically....
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