SAMS Zend PHP Certification Study Guide (2005).pdf

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Zend PHP Certification Study Guide
Copyright © 2005 by Sams Publishing
All rights reserved. No part of this book shall be reproduced, stored
in a retrieval system, or transmitted by any means, electronic,
mechanical, photocopying, recording, or otherwise, without written
permission from the publisher. No patent liability is assumed with
respect to the use of the information contained herein. Although
every precaution has been taken in the preparation of this book, the
publisher and author assume no responsibility for errors or omis-
sions. Nor is any liability assumed for damages resulting from the use
of the information contained herein.
International Standard Book Number: 0-672-32709-0
Library of Congress Catalog Card Number: 2004093764
Printed in the United States of America
First Printing: July 2004
07060504
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Contents at a Glance
Introduction
1
1 The Basics of PHP 5
2 Object-Oriented PHP
35
3 PHP and the Web
49
4 Arrays 61
5 Strings and Regular Expressions
89
6 File Manipulation 105
7 Managing Dates and Times
115
8 Managing Email 127
9 PHP and Databases 145
10 Stream and Network Programming
157
11 Security 177
12 Debugging and Performance 185
13 Getting Ready for the Certification Exam
201
Practice Exam Questions
209
Glossary
215
Index
225
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Table of Contents
Introduction 1
What Does This Guide Cover? 1
How Is the Guide Organized? 2
Other Resources You Might Want to Consult
3
1
The Basics of PHP 5
Terms You’ll Need to Understand
5
Techniques You’ll Need to Master
6
Language and Platform
6
Getting Started 6
The Special <?= ?> Tags
8
Scripts and Files 8
Manipulating Data 9
Numeric Values
9
String Values 10
Boolean Values 11
Arrays 11
Objects 11
The NULL Data Type
11
Resources 12
Identifiers, Constants, and Variables
12
Variables 12
Variable Substitution in Strings
13
Statements
13
Constants
14
Operators 14
The Assignment Operator
14
Arithmetic Operators
15
Bitwise Operators 16
Error-control Operators
16
String Operators 17
Comparison Operators
17
Logical Operators
18
Typecasting
19
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