PHP6与MySQL5动态网站开发指南

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"PHP6MySQL5ForDynamicWebSites" 《PHP6 & MySQL5 for Dynamic Web Sites》是一本由Larry Ullman编写的Visual QuickPro Guide，旨在帮助读者掌握使用PHP6和MySQL5创建动态网站的技术。这本书由Peachpit Press出版，是Pearson Education的一个分支。该书的编写团队包括编辑Rebecca Gulick、复制编辑Bob Campbell、生产协调员Becky Winter等，以及技术审阅者Arpad Ray。 PHP6和MySQL5是构建动态web应用的关键组件。PHP是一种广泛使用的服务器端脚本语言，尤其适用于web开发，能够处理HTML、CSS、JavaScript之外的后端逻辑，如数据库交互。在本书中，作者将引导读者了解如何使用PHP6来创建动态页面，处理用户输入，以及实现服务器端的各种功能。 MySQL5则是一个流行的开源关系型数据库管理系统（RDBMS），用于存储和管理网站的数据。通过学习如何与PHP6结合使用MySQL5，读者可以学习如何设计和管理数据库，执行查询，以及确保数据的安全性。本书内容可能涵盖以下主题： 1. PHP6基础：介绍PHP语言的基本语法，变量、数据类型、控制结构（如if-else、循环）、函数和类等。 2. MySQL5入门：讲解如何安装和配置MySQL，创建数据库和表，以及使用SQL语言进行数据操作。 3. 数据库连接与交互：介绍如何使用PHP的MySQL扩展（如mysqli或PDO）建立和管理数据库连接，执行查询和处理结果集。 4. 表单处理：教授如何创建HTML表单，以及如何在PHP中处理表单数据，实现用户输入验证。 5. 动态网页生成：讲述如何根据数据库内容生成动态网页，如显示列表、搜索结果等。 6. 安全性：讨论防止SQL注入、XSS攻击等网络安全问题的方法。 7. 错误处理与调试：指导如何跟踪和解决PHP代码中的错误，以及优化代码性能。 8. 应用实例：提供实际项目案例，帮助读者将所学知识应用到实际web开发中。这本书适合初学者和有一定经验的开发者，它通过直观的视觉指导和清晰的步骤说明，让读者能够快速掌握PHP6和MySQL5的联合使用，从而创建功能丰富的动态网站。尽管PHP6目前已被更新的版本（如PHP7和PHP8）所取代，但书中关于PHP的基本概念和技术原理仍然适用。同时，理解MySQL5的基础对于学习更现代的数据库技术也是有帮助的。

otherwise. MySQL is used by NASA and

the United States Census Bureau, among

many others.

At the time of this writing, MySQL is on ver-

sion 5.0.45, with versions 5.1 and 6.0 in devel-

opment. The version of MySQL you have

affects what features you can use, so it’s

important that you know what you’re work-

ing with. For this book, MySQL 5.0.45 was used,

although you should be able to do everything

in this book as long as you’re using a version

of MySQL greater than 4.1. (My book MySQL:

Visual QuickStart Guide goes into the more

advanced and newer features of MySQL 5

that aren’t used in this book.)

Introduction

What Are Dynamic Web Sites?

Pronunciation Guide

Trivial as it may be, I should clarify up

front that MySQL is technically pronounced

“My Ess Que Ell,” just as SQL should be

said “Ess Que Ell.” This is a question many

people have when first working with

these technologies. While not a critical

issue, it’s always best to pronounce

acronyms correctly.

The MySQL software consists of several

pieces, including the MySQL server (mysqld,

which runs and manages the databases), the

MySQL client (mysql, which gives you an

interface to the server), and numerous utili-

ties for maintenance and other purposes.

PHP has always had good support for

MySQL, and that is even more true in the

most recent versions of the language.

MySQL has been known to handle databases

as large as 60,000 tables with more than five

billion rows. MySQL can work with tables as

large as eight million terabytes on some

operating systems, generally a healthy 4 GB

URL Request

HTML

Client

Server

PHP

MySQL

HTML

Script Request

Query

Data

Figure i.5 How most of the dynamic Web applications in this book will work,

using both PHP and MySQL.

About This Book

This book teaches how to develop dynamic

Web sites with PHP and MySQL, covering

the knowledge that most developers might

require. In keeping with the format of the

Visual QuickPro series, the information is

discussed using a step-by-step approach

with corresponding images. The focus has

been kept on real-world, practical examples,

avoiding “here’s something you could do but

never would” scenarios. As a practicing Web

developer myself, I wrote about the informa-

tion that I use and avoided those topics

immaterial to the task at hand. As a practic-

ing writer, I made certain to include topics

and techniques that I know readers are ask-

ing about.

The structure of the book is linear, and the

intention is that you’ll read it in order. It

begins with three chapters covering the fun-

damentals of PHP (by the second chapter,

you will have already developed your first

dynamic Web page). After that, there are

three chapters on SQL (Structured Query

Language, which is used to interact with all

databases) and MySQL. They teach the basics

of SQL, database design, and the MySQL

application in particular. Then there’s one

chapter on debugging and error manage-

ment, information everyone needs. This is

followed by a chapter introducing how to

use PHP and MySQL together, a remarkably

easy thing to do.

The following five chapters teach more

application techniques to round out your

knowledge. Security, in particular, is repeat-

edly addressed in those pages. Chapter 14,

“Making Universal Sites,” is entirely new to

this edition of the book, showing you how to

broaden the reach of your sites. Finally, I’ve

included three example chapters, in which

the heart of different Web applications are

developed, with instructions.

Is this book for you?

This book was written for a wide range of

people within the beginner-to-intermediate

range. The book makes use of XHTML for

future compatibility, so solid experience

with XHTML, or its forebear HTML, is a

must. Although this book covers many

things, it does not formally teach HTML or

Web page design. Some CSS is sprinkled

about these pages but also not taught.

Second, this book expects that you have one

of the following:

◆

The drive and ability to learn without

much hand holding, or…

◆

Familiarity with another programming

language (even solid JavaScript skills

would qualify), or…

◆

A cursory knowledge of PHP

Make no mistake: This book covers PHP and

MySQL from A to Z, teaching everything

you’ll need to know to develop real-world

Web sites, but particularly the early chapters

cover PHP at a quick pace. For this reason I

recommend either some programming expe-

rience or a curious and independent spirit

when it comes to learning new things. If you

find that the material goes too quickly, you

should probably start off with the latest edi-

tion of my book PHP for the World Wide

Web: Visual QuickStart Guide, which goes at

a more tempered pace.

No database experience is required, since

SQL and MySQL are discussed starting at a

more basic level.

xvii

Introduction

About This Book

What’s new in this edition

The first two editions of this book have been

very popular, and I’ve received a lot of posi-

tive feedback on them (thanks!). In writing

this new edition, I wanted to do more than

just update the material for the latest ver-

sions of PHP and MySQL, although that is

an overriding consideration throughout the

book. Other new features you’ll find are:

◆

New examples demonstrating techniques

frequently requested by readers

◆

Some additional advanced MySQL and

SQL examples

◆

A dedicated chapter on thwarting com-

mon Web site abuses and attacks

◆

A brand-new chapter on working with

multiple languages and time zones

◆

A brand-new example chapter on creat-

ing a message board (or forum)

◆

Expanded and updated installation and

configuration instructions

◆

Removal of outdated content (e.g., things

used in older versions of PHP or not

applicable to PHP 6)

For those of you that also own the first

and/or second edition (thanks, thanks,

thanks!), I believe that these new features

will also make this edition a required fixture

on your desk or bookshelf.

How this book compares to my

other books

This is my fourth PHP and/or MySQL title,

after (in order)

◆

PHP for the World Wide Web: Visual

QuickStart Guide

◆

PHP 5 Advanced for the World Wide Web:

Visual QuickPro Guide

◆

MySQL: Visual QuickStart Guide

I hope this résumé implies a certain level of

qualification to write this book, but how do

you, as a reader standing in a bookstore,

decide which title is for you? Of course, you

are more than welcome to splurge and buy

the whole set, earning my eternal gratitude,

but…

The PHP for the World Wide Web: Visual

QuickStart Guide book is very much a begin-

ner’s guide to PHP. This title overlaps it

some, mostly in the first three chapters, but

uses new examples so as not to be redun-

dant. For novices, this book acts as a follow-

up to that one. The advanced book is really a

sequel to this one, as it assumes a fair

amount of knowledge and builds upon many

things taught here. The MySQL book focus-

es almost exclusively on MySQL (there are

but two chapters that use PHP).

With that in mind, read the section “Is this

book for you?” and see if the requirements

apply. If you have no programming experi-

ence at all and would prefer to be taught

PHP more gingerly, my first book would be

better. If you are already very comfortable

with PHP and want to learn more of its

advanced capabilities, pick up the second. If

you are most interested in MySQL and are

not concerned with learning much about

PHP, check out the third.

That being said, if you want to learn every-

thing you need to know to begin developing

dynamic Web sites with PHP and MySQL

today, then this is the book for you! It refer-

ences the most current versions of both

technologies, uses techniques not previously

discussed in other books, and contains its

own unique examples.

And whatever book you do choose, make sure

you’re getting the most recent edition or,

barring that, the edition that best matches

the versions of the technologies you’ll be using.

xviii

Introduction

About This Book

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