As one of the most popular open–source web–programming languages in use today, PHP is an ideal server–side scripting language that connects HTML–based web pages to a backend database for dynamic content. It allows you to create anything from a simple form–to–email script to a web forum application, a blogging platform, or a content management system. This guide introduces the PHP language and shows how to write powerful web applications using PHP.
Looks at the ways that PHP programs interact with web servers and other technologies such as HTML
Teaches you how to build robust web applications and change the flow of your scripts with decisions and loops
Examines ways to create and use strings, arrays, objects, functions, and files in your scripts
Shares tips for creating interactive web forms in PHP, as well as capturing user input
Unveils methods for preserving an application′s state between page views
Offers advice on how to work with MySQL databases using PHP
Includes best practices for using PEAR to speed up your application development
Presents techniques for manipulating XML from within your PHP scripts
Walks you through the creation and manipulation of web graphics using PHP
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Part I: Getting Up and Running with PHP
Chapter 1: Introducing PHP 3
Chapter 2: Your First PHP Script 11
Part II: Learning the Language
Chapter 3: PHP Language Basics 33
Chapter 4: Decisions and Loops 51
Chapter 5: Strings 73
Chapter 6: Arrays 101
Chapter 7: Functions 141
Chapter 8: Objects 165
Part III: Using PHP in Practice
Chapter 9: Handling HTML Forms with PHP 221
Chapter 10: Preserving State With Query Strings, Cookies, and Sessions 267
Chapter 11: Working with Files and Directories 297
Chapter 12: Introducing Databases and SQL 337
Chapter 13: Retrieving Data from MySQL with PHP 367
Chapter 14: Manipulating MySQL Data with PHP 403
Chapter 15: Making Your Job Easier with PEAR 441
Chapter 16: PHP and the Outside World 471
Chapter 17: Generating Images with PHP 507
Chapter 18: String Matching with Regular Expressions 539
Chapter 19: Working with XML 573
Chapter 20: Writing High–Quality Code 619
Appendix A: Solutions to Exercises 673
Appendix B: Configuring PHP 719
Appendix C: Alternatives to MySQL 757
Appendix D: Using PHP from the Command Line 765