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PHP编程强化:C语言打造高效函数工具
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"PHP编程工具,C语言开发指南,PHP功能增强"
本文将深入探讨与"PHP编程工具"相关的知识,特别是通过C语言为PHP提供强大函数工具的开发指南。PHP5 Power Programming是针对PHP开发的一本重要著作,旨在提升开发者在PHP环境中的编程效率和功能实现能力。
首先,了解PHP5的特性至关重要。PHP5引入了更多的面向对象编程特性,如类、对象、接口、抽象类、命名空间以及垃圾回收机制,这些都为开发者提供了更强大的工具来构建复杂的Web应用程序。C语言作为底层开发语言,能够直接扩展PHP的功能,通过编写PHP扩展,开发者可以创建自定义的函数和类库,提高性能,实现PHP无法原生支持的功能。
C语言开发PHP扩展涉及的知识点包括:
1. PHP API:理解PHP的内部数据结构和API,如zval、HashTable、 Zend引擎等,这是编写C扩展的基础。
2. 编译和构建:学会配置PHP源码并编译自定义扩展,通常使用phpize和configure脚本来完成这个过程。
3. 错误处理和调试:掌握如何在C扩展中插入错误处理代码,并利用gdb等工具进行调试。
4. 内存管理:理解PHP和C之间的内存分配与释放规则,避免内存泄漏。
5. 扩展生命周期管理:了解如何在PHP启动、请求开始、请求结束和PHP关闭时调用相应的C函数。
此外,书籍中的其他标签如"Java Application Development on Linux"和"C++ GUI Programming with Qt3"表明,这本书可能涵盖了多语言开发和跨平台技术,这对于希望构建多层架构或者混合技术栈的开发者非常有用。例如,了解Java和PHP的集成,可以帮助开发者在服务器端使用PHP,而在客户端利用Java的丰富库和桌面应用功能。
"Managing Linux Systems with Webmin"和"The Linux Development Platform"章节则涉及Linux系统管理和开发环境的配置,这对于PHP开发者来说同样重要,因为大多数PHP应用都运行在Linux服务器上。熟悉Linux操作系统,能有效地提升部署、监控和维护PHP应用的能力。
最后,书籍中提到的SNORT和Samba等安全及网络服务技术,对于构建安全的PHP应用和数据交互具有指导意义。SNORT是入侵检测系统,可以帮助开发者识别和防止对PHP应用的攻击;Samba则是Windows和Linux之间文件共享的重要工具,理解其工作原理和配置有助于实现跨平台的数据交换。
"PHP编程工具"这一主题涵盖的内容广泛,从基础的PHP5特性到C语言扩展开发,再到Linux系统管理和网络安全,都是PHP开发者需要掌握的关键技能。通过深入学习这些知识,开发者可以提升自己的技术水平,打造出更高效、更安全的PHP应用。
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:
<replace>
.............................................................................427
12.9.2 Examples................................................................................................427
12.10 Including C Code.........................................................................................428
12.10.1 Element:
<configureoptions>
.......................................................428
12.10.2 Element:
<configureoption>
.........................................................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
Gutmans_TOC Page xvi Thursday, September 23, 2004 9:06 AM
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
Gutmans_TOC Page xvii Thursday, September 23, 2004 9:06 AM
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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