كتاب Programming PHP
Rasmus Lerdorf and Kevin Tatroe with Bob Kaehms and Ric McGredy Programming PHP by Rasmus Lerdorf and Kevin Tatroe with Bob Kaehms and Ric McGredy Copyright © 2002 O’Reilly & Associates, Inc. All rights reserved. Printed in the United States of America. Published by O’Reilly & Associates, Inc., 1005 Gravenstein Highway North, Sebastopol, CA 95472. O’Reilly & Associates books may be purchased for educational, business, or sales promotional use. Online editions are also available for most titles ( safari.oreilly.com ). For more information, contact our corporate/institutional sales department: (800) 998-9938 or [email protected] . Editors: Nathan Torkington and Paula Ferguson Production Editor: Rachel Wheeler Cover Designer: Ellie Volckhausen Interior Designer: Melanie Wang Printing History: March 2002: First Edition. Nutshell Handbook, the Nutshell Handbook logo, and the O’Reilly logo are registered trademarks of O’Reilly & Associates, Inc. Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks. Where those designations appear in this book, and O’Reilly & Associates, Inc. was aware of a trademark claim, the designations have been printed in caps or initial caps. The association between the image of a cuckoo and PHP is a trademark of O’Reilly & Associates, Inc. While every precaution has been taken in the preparation of this book, the publisher and authors assume no responsibility for errors or omissions, or for damages resulting from the use of the information contained herein This is the Title of the Book, eMatter Edition Copyright © 2002 O’Reilly & Associates, Inc. All rights reserved. ix Preface Now, more than ever, the Web is a major vehicle for corporate and personal commu- nications. Web sites carry photo albums, shopping carts, and product lists. Many of those web sites are driven by PHP, an open source scripting language primarily designed for generating HTML content. Since its inception in 1994, PHP has swept over the Web. The millions of web sites powered by PHP are testament to its popularity and ease of use. It lies in the sweet spot between Perl/CGI, Active Server Pages (ASP), and HTML. Everyday people can learn PHP and can build powerful dynamic web sites with it. The core PHP language features powerful string- and array-handling facilities, as well as support for object-oriented programming. With the use of standard and optional extension modules, a PHP application can interact with a database such as MySQL or Oracle, draw graphs, create PDF files, and parse XML files. You can write your own PHP extension modules in C—for example, to provide a PHP interface to the functions in an existing code library. You can even run PHP on Windows, which lets you control other Windows applications such as Word and Excel with COM, or interact with databases using ODBC. This book is a guide to the PHP language. When you finish this book, you will know how the PHP language works, how to use the many powerful extensions that come standard with PHP, and how to design and build your own PHP web applications.-
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قراءة كتاب Programming PHP أونلاين
معلومات عن كتاب Programming PHP:
with Bob Kaehms and Ric McGredy
Programming PHP
by Rasmus Lerdorf and Kevin Tatroe
with Bob Kaehms and Ric McGredy
Copyright © 2002 O’Reilly & Associates, Inc. All rights reserved.
Printed in the United States of America.
Published by O’Reilly & Associates, Inc., 1005 Gravenstein Highway North,
Sebastopol, CA 95472.
O’Reilly & Associates books may be purchased for educational, business, or sales promotional
use. Online editions are also available for most titles (
safari.oreilly.com
). For more information,
contact our corporate/institutional sales department: (800) 998-9938 or
[email protected]
.
Editors:
Nathan Torkington and Paula Ferguson
Production Editor:
Rachel Wheeler
Cover Designer:
Ellie Volckhausen
Interior Designer:
Melanie Wang
Printing History:
March 2002:
First Edition.
Nutshell Handbook, the Nutshell Handbook logo, and the O’Reilly logo are registered
trademarks of O’Reilly & Associates, Inc. Many of the designations used by manufacturers and
sellers to distinguish their products are claimed as trademarks. Where those designations appear
in this book, and O’Reilly & Associates, Inc. was aware of a trademark claim, the designations
have been printed in caps or initial caps. The association between the image of a cuckoo and PHP
is a trademark of O’Reilly & Associates, Inc.
While every precaution has been taken in the preparation of this book, the publisher and authors
assume no responsibility for errors or omissions, or for damages resulting from the use of the
information contained herein
This is the Title of the Book, eMatter Edition
Copyright © 2002 O’Reilly & Associates, Inc. All rights reserved.
ix
Preface
Now, more than ever, the Web is a major vehicle for corporate and personal commu-
nications. Web sites carry photo albums, shopping carts, and product lists. Many of
those web sites are driven by PHP, an open source scripting language primarily
designed for generating HTML content.
Since its inception in 1994, PHP has swept over the Web. The millions of web sites
powered by PHP are testament to its popularity and ease of use. It lies in the sweet
spot between Perl/CGI, Active Server Pages (ASP), and HTML. Everyday people can
learn PHP and can build powerful dynamic web sites with it.
The core PHP language features powerful string- and array-handling facilities, as well
as support for object-oriented programming. With the use of standard and optional
extension modules, a PHP application can interact with a database such as MySQL
or Oracle, draw graphs, create PDF files, and parse XML files. You can write your
own PHP extension modules in C—for example, to provide a PHP interface to the
functions in an existing code library. You can even run PHP on Windows, which lets
you control other Windows applications such as Word and Excel with COM, or
interact with databases using ODBC.
This book is a guide to the PHP language. When you finish this book, you will know
how the PHP language works, how to use the many powerful extensions that come
standard with PHP, and how to design and build your own PHP web applications.
عدد مرات التحميل : 20776 مرّة / مرات.
تم اضافته في : الأحد , 11 مايو 2008م.
حجم الكتاب عند التحميل : 6.9 ميجا بايت .
تعليقات ومناقشات حول الكتاب:
v
Table of Contents
Preface
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. .
ix
1.
Introduction to PHP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
What Does PHP Do?
1
A Brief History of PHP
2
Installing PHP
7
A Walk Through PHP
9
2.
Language Basics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17
Lexical Structure
17
Data Types
23
Variables
30
Expressions and Operators
34
Flow-Control Statements
46
Including Code
54
Embedding PHP in Web Pages
56
3.
Functions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
61
Calling a Function
61
Defining a Function
62
Variable Scope
64
Function Parameters
66
Return Values
69
Variable Functions
70
Anonymous Functions
71
4.
Strings
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
72
Quoting String Constants
72
Printing Strings
75
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Table of Contents
Accessing Individual Characters
79
Cleaning Strings
80
Encoding and Escaping
81
Comparing Strings
86
Manipulating and Searching Strings
89
Regular Expressions
95
POSIX-Style Regular Expressions
99
Perl-Compatible Regular Expressions
103
5.
Arrays
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
116
Indexed Versus Associative Arrays
116
Identifying Elements of an Array
117
Storing Data in Arrays
117
Multidimensional Arrays
120
Extracting Multiple Values
120
Converting Between Arrays and Variables
124
Traversing Arrays
125
Sorting
130
Acting on Entire Arrays
135
Using Arrays
136
6.
Objects
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
140
Terminology
141
Creating an Object
141
Accessing Properties and Methods
142
Declaring a Class
143
Introspection
147
Serialization
153
7.
Web Techniques
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
158
HTTP Basics
158
Variables
159
Server Information
160
Processing Forms
162
Setting Response Headers
175
Maintaining State
178
SSL
188
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vii
8.
Databases
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
189
Using PHP to Access a Database
189
Relational Databases and SQL
190
PEAR DB Basics
192
Advanced Database Techniques
197
Sample Application
202
9.
Graphics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
214
Embedding an Image in a Page
214
The GD Extension
215
Basic Graphics Concepts
216
Creating and Drawing Images
217
Images with Text
220
Dynamically Generated Buttons
223
Scaling Images
227
Color Handling
228
10.
PDF
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
233
PDF Extensions
233
Documents and Pages
233
Text
237
Images and Graphics
246
Navigation
255
Other PDF Features
259
11.
XML
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
262
Lightning Guide to XML
262
Generating XML
264
Parsing XML
265
Transforming XML with XSLT
277
Web Services
280
12.
Security
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
285
Global Variables and Form Data
285
Filenames
287
File Uploads
289
File Permissions
291
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Table of Contents
Concealing PHP Libraries
293
PHP Code
294
Shell Commands
295
Security Redux
296
13.
Application Techniques
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
297
Code Libraries
297
Templating Systems
298
Handling Output
301
Error Handling
303
Performance Tuning
308
14.
Extending PHP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
317
Architectural Overview
317
What You’ll Need
318
Building Your First Extensions
319
The config.m4 File
327
Memory Management
329
The pval/zval Data Type
331
Parameter Handling
335
Returning Values
338
References
342
Global Variables
343
Creating Variables
345
Extension INI Entries
347
Resources
349
Where to Go from Here
350
15.
PHP on Windows
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
351
Installing and Configuring PHP on Windows
351
Writing Portable Code for Windows and Unix
355
Interfacing with COM
359
Interacting with ODBC Data Sources
367
A.
Function Reference
. . . . .
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