PHP and MySQL by Example Book

Preface xxiii Acknowledgments xxiv Chapter 1: Introduction 1

1.1 From Static to Dynamic Web Sites 1

1.2 About PHP 4

1.3 About MySQL 7

1.4 Chapter Summary 11

Chapter 2: Getting Started 13

2.1 The Life Cycle of a Web Page 13

2.2 The Anatomy of a PHP Script 15

2.3 Some Things to Consider 21

2.4 Review 31

2.5 Chapter Summary 37

Chapter 2 Lab 38

Chapter 3: PHP Quick Start 41

3.1 Quick Start, Quick Reference 41

3.2 Chapter Summary 57

Chapter 4: The Building Blocks: Data Types, Literals, Variables, and Constants 59

4.1 Data Types 59

4.2 Variables 70

4.3 Constants 99

4.4 Chapter Summary 104

Chapter 4 Lab 105

Chapter 5: Operators 107

5.1 About PHP Operators and Expressions 107

5.2 Chapter Summary 145

Chapter 5 Lab 146

Chapter 6: Strings 149

6.1 What Is a String? 149

6.2 String Functions 155

6.3 Other String Functions 214

6.4 Chapter Summary 218

Chapter 6 Lab 219

Chapter 7: Conditionals and Loops 221

7.1 Control Structures, Blocks, and Compound Statements 221

7.2 Loops 232

7.3 Chapter Summary 243

Chapter 7 Lab 244

Chapter 8: Arrays 247

8.1 What Is an Array? 247

8.2 Modifying Arrays (Unsetting, Deleting, Adding, and Changing Elements) 310

8.3 Chapter Summary 335

Chapter 8 Lab 336

Chapter 9: User-Defined Functions 337

9.1 What Is a Function? 337

9.2 Chapter Summary 376

Chapter 9 Lab 377

Chapter 10: More on PHP Forms 379

10.1 Introduction 379

10.2Review of HTML Forms 379

10.3 PHP and Forms 390

10.4 Chapter Summary 438

Chapter 10 Lab 439

Chapter 11: Files and Directories 441

11.1 Files 441

11.2 The Web Server, PHP, and Permissions 446

11.3 Directories 483

11.4 Managing Content with Include Files 487

11.5 Chapter Summary 494

Chapter 12: Regular Expressions and Pattern Matching 497

12.1 What Is a Regular Expression? 497

12.2 Pattern-Matching Functions 499

12.3 Chapter Summary 565

Chapter 12 Lab 566

Chapter 13: Introduction to MySQL 567

13.1 About Databases 567

13.2 The Anatomy of a Relational Database 570

13.3 Connecting to the Database 575

13.4 The MySQL Privilege System 582

13.5 Chapter Summary 593

Chapter 14: SQL Language Tutorial 595

14.1 What Is SQL? 595

14.2 SQL Data Manipulation Language (DML) 603

14.3 SQL Data Definition Language 620

14.4 SQL Functions 633

14.5 Chapter Summary 642

Chapter 14 Lab 643

Chapter 15: PHP and MySQL Integration 647

15.1 Introduction 647

15.2 The Guest Book Example 663

15.3 Chapter Summary 671

Chapter 15 Lab 671

Chapter 16: Cookies and Sessions 673

16.1 What Is Stateless? 673

16.2 What Are Cookies? 673

16.3 PHP and Cookies 677

16.4 What Is a Session? 694

16.5 Chapter Summary 736

Chapter 16 Lab 738

Chapter 17: Objects 739

17.1 What Are Objects? 739

17.2 Working with Classes 741

17.3 Some PHP 5 Object Features 772

17.4 Chapter Summary 780

Chapter 17 Lab 781

Appendix A: Building an Art Gallery 783

A.1 Project Overview 783

A.2 The Public and the Private 783

A.3 Creating the Web Site 785

A.4 Installing the Art Gallery 805

A.5 Conclusion 808

Appendix B: PHP and E-Mail 809

B.1 The Mail Server 809

B.2 MIME (Multipurpose Internet Mail Extensions) 810

B.3 Runtime Configuration Options 810

B.4 The mail() Function 811

B.5 Sending a Simple E-Mail Message 811

B.6 Example: Sending an HTML Message 813

Appendix C: PHP and Date/Time 819

C.1 Formatting Dates and Times 819

C.2 Getting the Timestamp 824

C.3 Getting the Date and Time 829

Appendix D: Security and Debugging 833

D.1 About Security 833

D.2 Securing PHP and MySQL 834

D.3 Debugging 841

Index 855