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“I’ve never purchased a better
programming book… This book proved to
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—Nick Landman
“This book by Welling & Thomson is the
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—Wright Sullivan, President,A&E
Engineering, Inc., Greer South Carolina
“I just wanted to tell you that I think the
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“There are several good introductory
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Telefonica R&D Labs, Madrid
“I picked up this book two days ago
and I am half way finished. I just can’t put
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The examples have also been wonderful.
I just had to take some time out to express
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—Jason B. Lancaster
“This book has proven a trusty
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“The true PHP/MySQL bible, PHP
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“Welling and Thomson’s book is a good
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applications as a matter of course, and
begins with a sturdy look at PHP first,
moving to MySQL once the basics
are covered.”
—twilight30 on Slashdot
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“This book is absolutely excellent, to
say the least…. Luke Welling and Laura
Thomson give the best in-depth explana-
tions I’ve come across on such things as
regular expressions, classes and objects,
sessions etc. I really feel this book filled in a
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the functions and features most commonly
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in describing real-world projects, MySQL
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ect manager’s point of view. I found every
bit of this book to be well organized and
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“A top-notch reference for
programmers using PHP and MySQL.
Highly recommended.”
—The Internet Writing Journal
“This book rocks! I am an experienced
programmer, so I didn’t need a lot of help
with PHP syntax; after all, it’s very close to
C/C++. I don’t know a thing about
databases, though, so when I wanted to
develop a book review engine (among
other projects) I wanted a solid reference
to using MySQL with PHP. I have
O’Reilly’s mSQL and MySQL book, and
it’s probably a better pure-SQL reference,
but this book has earned a place on my
reference shelf…Highly recommended.”
—Paul Robichaux
“One of the best programming guides
I’ve ever read.”
—jackofsometrades from Lahti, Finland
“This is a well-written book for learn-
ing how to build Internet applications with
two of the most popular open-source Web
development technologies….The projects
are the real jewel of the book. Not only are
the projects described and constructed in a
logical, component-based manner, but the
selection of projects represents an excellent
cross-section of common components that
are built into many web sites.”
—Craig Cecil
“The book takes an easy, step-by-step
approach to introduce even the clueless
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top of that, I often find myself referring
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—Stephen Ward
“This book is one of few that really
touched me and made me ‘love’ it. I can’t
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“This book is God…. I highly recom-
mend this book to anyone who wants to
jump in the deep end with database driven
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—Sean C Schertell
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PHP and MySQL
®
Web Development
Fourth Edition
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PHP and MySQL
®
Web Development
Luke Welling
Laura Thomson
Fourth Edition
Upper Saddle River, NJ • Boston • Indianapolis • San Francisco
New York
• Toronto • Montreal • London • Munich • Paris • Madrid
Cape Town
• Sydney • Tokyo • Singapore • Mexico City
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PHP and MySQL
®
Web Development, Fourth Edition
Copyright © 2009 by Pearson Education, Inc.
All rights reserved. No part of this book shall be reproduced, stored in a
retrieval system, or transmitted by any means, electronic, mechanical, pho-
tocopying, recording, or otherwise, without written permission from the pub-
lisher. No patent liability is assumed with respect to the use of the infor-
mation contained herein. Although every precaution has been taken in the
preparation of this book, the publisher and authors assume no responsibil-
ity for errors or omissions. Neither is any liability assumed for damages
resulting from the use of the information contained herein.
Library of Congress Cataloging-in-Publication Data
Welling, Luke, 1972-
PHP and MySQL Web development / Luke Welling, Laura Thomson. 4th
ed.
p. cm.
ISBN 978-0-672-32916-6 (pbk. w/cd)
1. PHP (Computer program language) 2. SQL (Computer program language)
3. MySQL (Electronic resource) 4. Web sites Design. I. Thomson,
Laura. II. Title.
QA76.73.P224W45 2008
005.2'762 dc22
2008036492
Printed in the United States of America
First Printing: September 2008
ISBN-10: 0-672-32916-6
ISBN-13: 978-0-672-32916-6
Trademarks
All terms mentioned in this book that are known to be trademarks or serv-
ice marks have been appropriately capitalized. Pearson Education, Inc.
cannot attest to the accuracy of this information. Use of a term in this
book should not be regarded as affecting the validity of any trademark or
service mark.
Warning and Disclaimer
Every effort has been made to make this book as complete and as accurate
as possible, but no warranty or fitness is implied. The information provided
is on an “as is” basis. The authors and the publisher shall have neither lia-
bility nor responsibility to any person or entity with respect to any loss or
damages arising from the information contained in this book or from the use
of the CD-ROM or programs accompanying it.
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ordered in quantity for bulk purchases or special sales. For more informa-
tion, please contact
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❖
To our Mums and Dads
❖
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Contents at a Glance
Introduction 1
I Using PHP
1 PHP Crash Course 13
2 Storing and Retrieving Data 59
3 Using Arrays 81
4 String Manipulation and Regular Expressions 107
5 Reusing Code and Writing Functions 133
6 Object-Oriented PHP 159
7 Error and Exception Handling 193
II Using MySQL
8 Designing Your Web Database 207
9 Creating Your Web Database 219
10 Working with Your MySQL Database 243
11 Accessing Your MySQL Database from the Web
with PHP 267
12 Advanced MySQL Administration 287
13 Advanced MySQL Programming 311
III E-commerce and Security
14 Running an E-commerce Site 327
15 E-commerce Security Issues 341
16 Web Application Security 361
17 Implementing Authentication with PHP and
MySQL 391
18 Implementing Secure Transactions with PHP and
MySQL 409
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IV Advanced PHP Techniques
19 Interacting with the File System and the Server
431
20 Using Network and Protocol Functions 451
21 Managing the Date and Time 469
22 Generating Images 483
23 Using Session Control in PHP 509
24 Other Useful Features 525
V Building Practical PHP and MySQL Projects
25 Using PHP and MySQL for Large Projects 535
26 Debugging 551
27 Building User Authentication and Personalization
569
28 Building a Shopping Cart 607
29 Building a Web-Based Email Service 651
30 Building a Mailing List Manager 687
31 Building Web Forums 741
32 Generating Personalized PDF Documents 771
33 Connecting to Web Services with XML and SOAP
807
34 Building Web 2.0 Applications with Ajax 855
VI Appendixes
A Installing PHP and MySQL 889
B Web Resources 907
Index 911
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[...]... Code 530 Using PHP on the Command Line 531 Next 532 V Building Practical PHP and MySQL Projects 25 Using PHP and MySQL for Large Projects 535 Applying Software Engineering to Web Development 536 Planning and Running a Web Application Project 536 Reusing Code 537 Writing Maintainable Code 538 Coding Standards 538 Breaking Up Code 541 www.it-ebooks.info xxvii xxviii Contents Using a Standard Directory... 884 Ajax Developer Websites 885 Appendixes A Installing PHP and MySQL 889 Installing Apache, PHP, and MySQL Under Unix 890 Binary Installation 890 Source Installation 891 httpd.conf File: Snippets 896 Is PHP Support Working? 897 Is SSL Working? 898 Installing Apache, PHP, and MySQL Under Windows 899 Installing MySQL Under Windows 900 Installing Apache Under Windows 901 Installing PHP for Windows 903... been developing web- based applications since the Web first saw the light of day and remembers the excitement surrounding the first GUI web browser She has authored numerous books and articles on web- based programming languages and database topics, including the bestselling Sams Teach Yourself PHP, MySQL, and Apache All in One Adam DeFields is a consultant specializing in web application development, project... (Computer Science) degree and a Bachelor of Engineering (Computer Systems Engineering) degree with honors In her spare time she enjoys riding horses, arguing about free and open source software, and sleeping Luke Welling is a web architect at OmniTI and regularly speaks on open source and web development topics at conferences such as OSCON, ZendCon, MySQLUC, PHPCon, OSDC, and LinuxTag Prior to joining... Logging In to MySQL 221 Creating Databases and Users 222 Setting Up Users and Privileges 223 Introducing MySQL s Privilege System 223 Principle of Least Privilege 223 User Setup:The GRANT Command 223 Types and Levels of Privileges 225 The REVOKE Command 227 Examples Using GRANT and REVOKE 227 Setting Up a User for the Web 228 Using the Right Database 229 Creating Database Tables 229 Understanding What... Setting Up Other Configurations 906 B Web Resources 907 PHP Resources 907 MySQL and SQL Specific Resources 909 Apache Resources 909 Web Development 910 Index 911 www.it-ebooks.info Lead Authors Laura Thomson is a senior software engineer at Mozilla Corporation She was formerly a principal at both OmniTI and Tangled Web Design, and she has worked for RMIT University and the Boston Consulting Group She... Goes in Your Code 374 File System Considerations 375 Code Stability and Bugs 376 Execution Quotes and exec 377 Securing Your Web Server and PHP 378 Keep Software Up-to-Date 378 Browse the php. ini file 380 www.it-ebooks.info Contents Web Server Configuration 380 Commercially Hosted Web Applications 382 Database Server Security 383 Users and the Permissions System 383 Sending Data to the Server 384 Connecting... Problems with Headers 804 Extending the Project 805 Next 805 33 Connecting to Web Services with XML and SOAP 807 Project Overview:Working with XML and Web Services 807 Understanding XML 808 Understanding Web Services 811 Solution Components 813 Using Amazon’s Web Services Interfaces 813 Parsing XML: REST Responses 814 Using SOAP with PHP 814 Caching 815 www.it-ebooks.info Contents Solution Overview 815 Core... Code and Writing Functions 133 The Advantages of Reusing Code 133 Cost 134 Reliability 134 Consistency 134 Using require() and include() 134 Filename Extensions and require() 135 Using require() for Website Templates 137 www.it-ebooks.info Contents Using auto_prepend_file and auto_append_file 142 Using Functions in PHP 143 Calling Functions 143 Calling an Undefined Function 145 Understanding Case and. .. Further Reading 468 Next 468 21 Managing the Date and Time 469 Getting the Date and Time from PHP 469 Using the date() Function 469 Dealing with Unix Timestamps 471 Using the getdate() Function 473 Validating Dates with checkdate() 474 Formatting Timestamps 474 Converting Between PHP and MySQL Date Formats 476 Calculating Dates in PHP 477 Calculating Dates in MySQL 478 Using Microseconds 480 Using the Calendar . are a PHP newbie or a veteran in search of a better desk-side reference, this one is sure to please!” —WebDynamic “The true PHP/ MySQL bible, PHP and MySQL Web Development by Luke Welling and Laura. and Writing Functions 133 6 Object-Oriented PHP 159 7 Error and Exception Handling 193 II Using MySQL 8 Designing Your Web Database 207 9 Creating Your Web Database 219 10 Working with Your MySQL. Issues 341 16 Web Application Security 361 17 Implementing Authentication with PHP and MySQL 391 18 Implementing Secure Transactions with PHP and MySQL 409 www.it-ebooks.info IV Advanced PHP Techniques 19
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