PHP 5高级编程权威指南：面向经验开发者

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《PHP 5 Power Programming》是一本深入探讨高级PHP编程技术的专业书籍，特别适合那些已经具备编程经验的读者。该书作为Bruce Perens开源系列的一部分，旨在帮助读者充分利用PHP 5的潜力，提升在Linux环境下的应用程序开发能力。书中涵盖了多个主题，体现了作者对PHP语言的深度理解和实践经验。首先，Carl Albing和Michael Schwarz的章节介绍了Java应用开发在Linux平台上的策略，这对于寻求跨平台技术集成的开发者来说是个重要资源。接着，Jasmin Blanchette和Mark Summerfield的章节关注于通过Webmin进行Linux系统管理和模块开发，这对于系统管理员和模块开发者来说提供了实用的管理工具。此外，Jamie Cameron的章节讲解了Linux虚拟内存管理的原理和技术，这对于理解操作系统底层运作机制的开发者来说是一次深入了解的机会。Mel Gorman的章节则着重于CIFS（Common Internet File System）的实现，对于构建网络文件共享解决方案的开发者来说具有参考价值。Christopher Hertel的章节探讨了嵌入式软件开发与eCos平台的结合，为嵌入式设备的软件开发者提供指导。 Anthony Massa的章节围绕着Rapid Application Development (RAD)方法论，结合Mozilla技术，展示了如何快速构建高效的应用程序。Nigel McFarlane的章节则着眼于创建一个完整的编程环境，包括Linux开发平台的配置、使用和维护，为开发者提供全面的技术支持。 Rafeeq Ur Rehman的作品分别聚焦于入侵检测（Intrusion Detection）技术，结合SNORT、Apache、MySQL、PHP等工具，以及官方Samba-3的实战指南，为网络安全和服务器管理领域的专业人士提供深入的防护策略和实践案例。 John H. Terpstra既是本书编辑，也参与了Samba-3的实战教程，他的章节通过实际操作演示如何成功部署Samba-3，为用户提供了一手的部署和管理经验。《PHP 5 Power Programming》是一本集理论与实践于一体的高级PHP学习指南，无论是对提升专业技能，还是解决实际项目中的复杂问题，都能为读者提供宝贵的参考和灵感。

xvi Contents

12.7 The package.xml Format ..............................................................................416

12.7.1 Package Information .............................................................................417

12.7.2 Release Information ..............................................................................419

12.8 Dependencies.................................................................................................423

12.8.1 Element:

<deps>

...................................................................................423

12.8.2 Element:

<dep>

.....................................................................................423

12.8.3 Dependency Types .................................................................................424

12.8.4 Reasons to Avoid Dependencies............................................................425

12.8.5 Optional Dependencies..........................................................................426

12.8.6 Some Examples......................................................................................426

12.9 String Substitutions......................................................................................427

12.9.1 Element:

.............................................................................427

12.9.2 Examples................................................................................................427

12.10 Including C Code.........................................................................................428

12.10.1 Element:

.......................................................428

12.10.2 Element:

.........................................................428

12.11 Releasing Packages.....................................................................................428

12.12 The PEAR Release Process.........................................................................429

12.13 Packaging ....................................................................................................430

12.13.1 Source Analysis....................................................................................430

12.13.2 MD5 Checksum Generation................................................................430

12.13.3 Package.xml Update............................................................................431

12.13.4 Tarball Creation ..................................................................................431

12.14 Uploading ....................................................................................................432

12.14.1 Upload Release ....................................................................................432

12.14.2 Finished!...............................................................................................432

12.15 Summary .....................................................................................................432

13 Making the Move .............................................................................................. 433

13.1 Introduction...................................................................................................433

13.2 The Object Model ..........................................................................................433

13.3 Passing Objects to Functions........................................................................433

13.4 Compatibility Mode.......................................................................................435

13.4.1 Casting Objects......................................................................................435

13.4.2 Comparing Objects ................................................................................436

13.5 Other Changes ..............................................................................................437

13.5.1 Assigning to

$this

................................................................................437

13.5.2

get_class

.............................................................................................440

13.6

E_STRICT

......................................................................................................441

13.6.1 Automagically Creating Objects ...........................................................441

13.6.2

var

and

public

....................................................................................441

13.6.3 Constructors...........................................................................................442

13.6.4 Inherited Methods .................................................................................442

13.6.5 Define Classes Before Usage.................................................................443

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Contents xvii

13.7 Other Compatibility Problems.....................................................................443

13.7.1 Command-Line Interface ......................................................................443

13.7.2 Comment Tokens...................................................................................443

13.7.3 MySQL ...................................................................................................445

13.8 Changes in Functions...................................................................................445

13.8.1

array_merge()

....................................................................................445

13.8.2

strrpos()

and

strripos()

...............................................................446

13.9 Summary.......................................................................................................447

14 Performance .......................................................................................................449

14.1 Introduction ..................................................................................................449

14.2 Design for Performance................................................................................449

14.2.1 PHP Design Tip #1: Beware of State ...................................................450

14.2.2 PHP Design Tip #2: Cache!...................................................................451

14.2.3 PHP Design Tip #3: Do Not Over Design!............................................456

14.3 Benchmarking...............................................................................................457

14.3.1 Using ApacheBench ..............................................................................457

14.3.2 Using Siege ............................................................................................458

14.3.3 Testing Versus Real Traffic ..................................................................459

14.4 Proﬁling with Zend Studio's Proﬁler ...........................................................459

14.5 Proﬁling with APD........................................................................................461

14.5.1 Installing APD.......................................................................................461

14.5.2 Analyzing Trace Data ...........................................................................462

14.6 Proﬁling with Xdebug...................................................................................465

14.6.1 Installing Xdebug ..................................................................................466

14.6.2 Tracing Script Execution ......................................................................466

14.6.3 Using KCachegrind ...............................................................................468

14.7 Using APC (Advanced PHP Cache) .............................................................470

14.8 Using ZPS (Zend Performance Suite)..........................................................470

14.8.1 Automatic Optimization........................................................................471

14.8.2 Compiled Code Caching ........................................................................472

14.8.3 Dynamic Content Caching....................................................................473

14.8.4 Content Compression............................................................................476

14.9 Optimizing Code ...........................................................................................477

14.9.1 Micro-Benchmarks ................................................................................477

14.9.2 Rewrite in C...........................................................................................479

14.9.3 OO Versus Procedural Code .................................................................480

14.10 Summary.....................................................................................................481

15 An Introduction to Writing PHP Extensions..............................................483

15.1 Introduction ..................................................................................................483

15.2 Quickstart .....................................................................................................484

15.2.1 Memory Management ...........................................................................489

15.2.2 Returning Values from PHP Functions ...............................................490

15.2.3 Completing self-concat()................................................................490

15.2.4 Summary of Example............................................................................492

15.2.5 Wrapping Third-Party Extensions .......................................................492

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xviii Contents

15.2.6 Global Variables ....................................................................................501

15.2.7 Adding Custom INI Directives..............................................................503

15.2.8 Thread-Safe Resource Manager Macros...............................................504

15.3 Summary .......................................................................................................505

16 PHP Shell Scripting......................................................................................... 507

16.1 Introduction...................................................................................................507

16.2 PHP CLI Shell Scripts..................................................................................508

16.2.1 How CLI Differs From CGI...................................................................508

16.2.2 The Shell-Scripting Environment.........................................................510

16.2.3 Parsing Command-Line Options ..........................................................512

16.2.4 Good Practices........................................................................................515

16.2.5 Process Control ......................................................................................516

16.2.6 Examples................................................................................................520

16.3 Summary .......................................................................................................526

A PEAR and PECL Package Index ................................................................... 527

A.1 Authentication................................................................................................527

A.2 Benchmarking ................................................................................................530

A.3 Caching ...........................................................................................................530

A.4 Conﬁguration..................................................................................................531

A.5 Console............................................................................................................531

A.6 Database .........................................................................................................533

A.7 Date and Time ................................................................................................542

A.8 Encryption ......................................................................................................543

A.9 File Formats....................................................................................................545

A.10 File System ...................................................................................................548

A.11 Gtk Components...........................................................................................550

A.12 HTML............................................................................................................550

A.13 HTTP.............................................................................................................561

A.14 Images...........................................................................................................563

A.15 Internationalization .....................................................................................566

A.16 Logging..........................................................................................................568

A.17 Mail ...............................................................................................................569

A.18 Math..............................................................................................................571

A.19 Networking ...................................................................................................574

A.20 Numbers........................................................................................................584

A.21 Payment ........................................................................................................585

A.22 PEAR............................................................................................................587

A.23 PHP ...............................................................................................................588

A.24 Processing .....................................................................................................594

A.25 Science...........................................................................................................594

A.26 Streams.........................................................................................................595

A.27 Structures .....................................................................................................596

A.28 System...........................................................................................................598

A.29 Text................................................................................................................599

Gutmans_TOC Page xviii Thursday, September 23, 2004 9:06 AM

Contents xix

A.30 Tools and Utilities ........................................................................................600

A.31 Web Services.................................................................................................603

A.32 XML ..............................................................................................................604

B phpDocumentor Format Reference ..............................................................613

B.1 Introduction....................................................................................................613

B.2 Documentation Comments ............................................................................613

B.3 Tag Reference .................................................................................................615

B.3.1 abstract ................................................................................................615

B.3.2 access ....................................................................................................616

B.3.3 author ....................................................................................................617

B.3.4 category ................................................................................................618

B.3.5 copyright..............................................................................................618

B.3.6 deprecated............................................................................................618

B.3.7 example ..................................................................................................619

B.3.8 filesource............................................................................................620

B.3.9 final ......................................................................................................620

B.3.10 global ................................................................................................621

B.3.11 ignore ................................................................................................622

B.3.12 inheritdoc (inline) ..........................................................................622

B.3.13 internal, internal (inline) ........................................................622

B.3.14 licence ..............................................................................................623

B.3.15 link ....................................................................................................623

B.3.16 link (inline) ......................................................................................623

B.3.17 name ....................................................................................................624

B.3.18 package ..............................................................................................624

B.3.19 param ..................................................................................................626

B.3.20 return ................................................................................................627

B.3.21 see........................................................................................................627

B.3.22 since ..................................................................................................628

B.3.23 static .................................................................................................628

B.3.24 staticvar...........................................................................................629

B.3.25 subpackage.........................................................................................629

B.3.26 todo......................................................................................................630

B.3.27 uses ....................................................................................................630

B.3.28 var........................................................................................................631

B.3.29 version ...............................................................................................631

B.4 Tag Table.........................................................................................................632

B.5 Using the phpDocumentor Tool.....................................................................633

C Zend Studio Quick Start Guide ....................................................................643

C.1 Version 3.5.x ...................................................................................................643

C.2 About the Zend Studio Client Quick Start Guide.........................................643

C.3 About Zend .....................................................................................................643

C.4 Zend Studio Client: Overview........................................................................644

Gutmans_TOC Page xix Thursday, September 23, 2004 9:06 AM

xx Contents

C.4.1 Studio Components.................................................................................644

C.4.2 Client Server Configuration ...................................................................645

C.4.3 Installation and Registration .................................................................645

C.5 Editing a File ..................................................................................................647

C.5.1 Editing a File...........................................................................................647

C.6 Working with Projects ....................................................................................648

C.6.1 Advantages of Working with Projects....................................................648

C.6.2 How to Create a Project..........................................................................648

C.7 Running the Debugger ..................................................................................648

C.7.1 Internal Debugger...................................................................................649

C.7.2 Remote Debugger....................................................................................649

C.7.3 Debug URL..............................................................................................650

C.8 Conﬁgure Studio Server for Remote Debugger and Proﬁling......................650

C.9 Running the Proﬁler.......................................................................................651

C.10 Product Support............................................................................................652

C.10.1 Getting Support.....................................................................................653

C.11 Main Features...............................................................................................653

Index.................................................................................................................... 655

Gutmans_TOC Page xx Thursday, September 23, 2004 9:06 AM

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