Preface
Nowadays, web applications are behaving more and more like desktop applications with lesser page loads and more user interaction and effects. The Web has become faster and applications such as Gmail and Facebook have given a new meaning to web applications.
时至今日,WEB应用已经越来越像桌面应用那样,更少的页面加载和更多的用户交互以及特效。网速的提高和像Gmail和Facebook这样的应用给WEB应用赋以新的意义
PHP on the server side and jQuery on the client side (browser) are a killer combination for developing interactive web applications. PHP is the leading language of choice among web developers and jQuery is now used on more than one-third of the top 1000 sites on the internet and is the most widely-used library.
在服务端的PHP和客户端(浏览器)的jQuery是开发交互式web应用的杀手锏。大部分web开发者的首选PHP,而jQuery也是一个广泛使用的库,排名前1000的网站中有超过1/3的正在使用它。
One thing that PHP and jQuery have in common is that they are easy to learn. Once you know the basics, you can promote yourself to the next level easily.
PHP和jQuery有一个共同点就是他们都非常容易学习,一旦你了解了基础,就很容易提升一个台阶。
And this is what the book will do for you. It is like a toolbox having a myriad of tools inside. It will allow you to write faster web applications, which feel like desktop applications, with the help of PHP and jQuery. Whether you want to learn live validations, create plugins, drag elements, create a menu, watch videos using YouTube API, or interact with the database, just jump to the respective recipe for the solution. AJAX, a key feature of rich internet applications, is also covered in detail.
这本书给您做到的,它有点像一个五花八门工具的工具箱,会帮助你用PHP和jQuery快速地编写像桌面应用的WEB应用。如果您需要学习如
即时验证,
创建插件,
拖拽元素,
创建菜单,
通过YouTube的API观看视频,
和数据库通信其中任意一项,你可以翻阅到相关章节寻找解决办法。同时，作为富互联网应用的关键之一AJAX也会被详细讨论。
You are not required to read this book from the beginning to the end. Each recipe is
independent and is like a "how to" or a mini application in itself. You can directly look
for a solution to a specifc problem.
您不需要从头到尾的阅读本书,每个章节都是独立的,它更像是一个如何做(?解决办法)或者是自身就是一个迷你应用。您可以根据一个特定问题寻找解决办法
I hope you will find this book useful and that it will help you to take your skills to a higher level.
我希望这本书能帮助您把技能提升到更高的水平。
What this book coversChapter 1, Handling Events with jQuery, helps you understand jQuery's cross-browser event
handling methods. You will learn to work with keyboard and mouse events. Advance event
handling topics, such as dragging and keyboard shortcuts are also discussed.
Chapter 2, Combining PHP and jQuery, lists several ways of sending AJAX requests using
jQuery and also describes how PHP responds to such requests. This chapter also contains
recipes that deal with caching of AJAX requests and error handling during AJAX requests.
Chapter 3, Working with XML Documents, explains working with XML fles in PHP as well as
jQuery. Recipes will describe how to read, write, and modify XMLs using DOM and SimpleXML
extensions of PHP. Parsing XML with jQuery is also discussed.
Chapter 4, Working with JSON, discusses JSON in detail. You will be shown how to read and
write JSON data in PHP, and also explore jQuery's inbuilt capabilities of parsing JSON.
Chapter 5, Working with Forms, deals with forms and form validations. You will learn how to
validate forms for different types of data with jQuery. This will cover validating empty felds,
numbers, e-mail addresses, web addresses, and much more. Server-side validation methods
will also be discussed to make validations more powerful.
Chapter 6, Adding Visual Effects to Forms, extends the previous chapter and provides recipes
for adding visual effects to forms. Recipes in this chapter allow you to create user-friendly
forms by adding effects, such as highlighting, fading, expandable boxes, and various others.
Chapter 7, Creating Cool Navigation Menus, describes the creation of different types of
menus, such as animated menus, accordions, and tabbed menus. Advanced techniques for
creating tabs are also covered that will guide you in adding and removing tabs on the fy.
Chapter 8, Data Binding with PHP and jQuery, explains, in detail, how a database can be used
along with PHP and jQuery. Examples included in this chapter will explain how to fetch data
from the database and use it in web forms.
Chapter 9, Enhancing your Site with PHP and jQuery, teaches you some advanced techniques
of PHP and jQuery. It will show how to overcome browser restrictions like
cross-domain requests. You will learn to create a jQuery plugin for custom use and an
endless scrolling page among other things.
Appendix, Firebug, explains the use of Firebug for debugging HTML and JavaScript in web
pages. You will learn how to edit HTML and change the appearance of pages on the browser
itself without switching to actual code fles. You will be able to execute JavaScript directly from
Firebug and further understand debugging JavaScript using this add-on.
What you need for this book
You should have Apache (or another web server), PHP (version 5.0 or above), and MySQL
installed on your system to be able to run the examples in this book. You can install them
all at once using software such as WampServer or you can install them separately. jQuery
(version 1.3.2 or higher) will also be required.
In terms of technical profciency, this book assumes that you have working knowledge of PHP,
jQuery, HTML, and CSS. You need to know only the basics of these, leave the rest to this book.Preface
Who this book is for
This book is for PHP and jQuery developers who just know the basics of these two and want
to use PHP and jQuery together to create rich internet applications. It provides a large number
of examples in each chapter that will take you from being a basic developer to a pro by giving
step-by-step instructions for each task in developing web applications using PHP and jQuery.
Conventions
In this book, you will fnd a number of styles of text that distinguish between different kinds of
information. Here are some examples of these styles, and an explanation of their meaning.
Code words in text are shown as follows: "The input button has also been attached
to a click event."
A block of code is set as follows:
$('input:text').bind(
{
focus: function()
{
$(this).val('');
},
blur: function()
{
$(this).val('Enter some text');
}
});
New terms and important words are shown in bold. Words that you see on the screen, in
menus or dialog boxes for example, appear in the text like this: "Now click on the
Create New Element button a few times to create some DIV elements".
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