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PHP and MySQL
Web Development
Luke Welling and Laura Thomson
201 West 103rd St., Indianapolis, Indiana, 46290 USA
00 7842 FM 3/6/01 3:38 PM Page ii
PHP and MySQL Web Development ACQUISITIONS EDITOR
Shelley Johnston Markanday
Copyright © 2001 by Sams Publishing DEVELOPMENT EDITOR
All rights reserved. No part of this book shall be reproduced, stored in a Scott D. Meyers
retrieval system, or transmitted by any means, electronic, mechanical, photo-
copying, recording, or otherwise, without written permission from the pub- MANAGING EDITOR
lisher. No patent liability is assumed with respect to the use of the information Charlotte Clapp
contained herein. Although every precaution has been taken in the preparation
COPY EDITOR
of this book, the publisher and author assume no responsibility for errors or
Rhonda Tinch-Mize
omissions. Neither is any liability assumed for damages resulting from the use
of the information contained herein. INDEXER
Kelly Castell
International Standard Book Number: 0-672-31784-2
Library of Congress Catalog Card Number: 99-64841 PROOFREADERS
Kathy Bidwell
Printed in the United States of America Tony Reitz
First Printing: March 2001
TECHNICAL EDITORS
04 03 02 01 4 3 2 1 Israel Denis
Chris Newman
Trademarks
All terms mentioned in this book that are known to be trademarks or service TEAM COORDINATOR
marks have been appropriately capitalized. Sams Publishing cannot attest to Amy Patton
the accuracy of this information. Use of a term in this book should not be SOFTWARE DEVELOPMENT
regarded as affecting the validity of any trademark or service mark. SPECIALIST
Dan Scherf
Warning and Disclaimer INTERIOR DESIGN
Every effort has been made to make this book plete and as accurate as Anne Jones
possible, but no warranty or fitness is implied. The information provided is on
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an “as is” basis. The authors and the publisher shall have neither li