Home Backend Development PHP Tutorial 怎么利用C自定义实现PHP扩展

怎么利用C自定义实现PHP扩展

Jun 13, 2016 am 11:00 AM
entry module null php

如何利用C自定义实现PHP扩展

由于有一部分代码需要加解密,所以需要扩展PHP模块,于是简单的使用base64来实现简单的加密算法。因为时间的关系,这里主要是对如何实现PHP扩展做一个概述和记录,并不涉及到加密算法的具体实现,等有空再补上。

1、环境:
centos 5
php 5.1.6
autoconf 2.59
automake 1.96
libtool
bison
flex
re2c

2、创建模块
2.1 转到php源码目录扩展包目录下
cd /usr/include/php/ext

2.2 创建一个叫做itbeing的文件夹(这里我们的模块名称就叫做itbeing了)
mkdir itbeing
cd itbeing

2.3 创建config.m4文件,config.m4 文件使用 GNU autoconf 语法编写,该文件的主要作用是 文件告诉系统构建系统哪些扩展 configure 选项是支持的,你需要哪些扩展库,以及哪些源文件要编译成它的一部分。

  1. PHP_ARG_ENABLE(itbeing,
  2. ?? ? ? ?[Whether to enable the "itbeing" extension],
  3. ?? ? ? ?[? --enable-itbeing? ? ? ?Enable "itbeing" extension support])
  4. ?
  5. if test $PHP_ITBEING != "no"; then
  6. ?? ? ? ?PHP_SUBST(ITBEING_SHARED_LIBADD)
  7. ?? ? ? ?PHP_NEW_EXTENSION(itbeing, itbeing.c, $ext_shared)
  8. fi

2.4 创建php_itbeing.h 头文件

  1. #ifndef PHP_ITBEING_H
  2. /* Prevent double inclusion */
  3. #define PHP_ITBEING_H
  4. ?
  5. /* Define extension properties */
  6. #define PHP_ITBEING_EXTNAME "itbeing"
  7. #define PHP_ITBEING_EXTVER "1.0"
  8. ?
  9. /* Import configure options
  10. ?* when building outside of the
  11. ?* PHP source tree */
  12. #ifdef HAVE_CONFIG_H
  13. #include "config.h"
  14. #endif
  15. ?
  16. /* Include PHP standard Header */
  17. #include "php.h"
  18. /*
  19. ?* define the entry point symbole
  20. ?* Zend will use when loading this module
  21. ?*/
  22. extern zend_module_entry itbeing_module_entry;
  23. #define phpext_itbeing_ptr &itbeing_module_entry
  24. ?
  25. #endif /* PHP_ITBEING_H */

2.5 创建itbeing.c 文件

  1. #include "php_itbeing.h"
  2. ?
  3. PHP_FUNCTION(itbeing_sayhi)
  4. {
  5. ?? ? ? ?char *name;
  6. ?? ? ? ?int name_len;
  7. ?
  8. ?? ? ? ?if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s",
  9. ?? ? ? ? ? ? ? ?&name, &name_len) == FAILURE)
  10. ?? ? ? ?{
  11. ?? ? ? ? ? ? ? ?RETURN_NULL();
  12. ?? ? ? ?}
  13. ?
  14. ?? ? ? ?php_printf("Hi, ");
  15. ?? ? ? ?PHPWRITE(name, name_len);
  16. ?? ? ? ?php_printf("!\n");
  17. }
  18. ?
  19. static function_entry php_itbeing_functions[] = {
  20. ?? ? ? ?PHP_FE(itbeing_sayhi, NULL)
  21. ?? ? ? ?{ NULL, NULL, NULL }
  22. };
  23. ?
  24. zend_module_entry itbeing_module_entry = {
  25. #if ZEND_MODULE_API_NO >= 20010901
  26. ?? ? ? ?STANDARD_MODULE_HEADER,
  27. #endif
  28. ?? ? ? ?PHP_ITBEING_EXTNAME,
  29. ?? ? ? ?php_itbeing_functions, /* Functions */
  30. ?? ? ? ?NULL, /* MINIT */
  31. ?? ? ? ?NULL, /* MSHUTDOWN */
  32. ?? ? ? ?NULL, /* RINIT */
  33. ?? ? ? ?NULL, /* RSHUTDOWN */
  34. ?? ? ? ?NULL, /* MINFO */
  35. #if ZEND_MODULE_API_NO >= 20010901
  36. ?? ? ? ?PHP_ITBEING_EXTVER,
  37. #endif
  38. ?? ? ? ?STANDARD_MODULE_PROPERTIES
  39. };
  40. ?
  41. #ifdef COMPILE_DL_ITBEING
  42. ZEND_GET_MODULE(itbeing)
  43. #endif

3、编译模块
3.1 phpize
3.2 ./config -enable-itbeing
3.3 make
3.4 cp modules/itbeing.so /usr/lib/php/modules
3.5 vim /etc/php.ini 添加extension = itbeing.so

测试:php -r “itbeing_sayhi(’kokko’)”
结果:Hi,kokko

?

原文:http://www.kokkowon.com/archives/981

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian Dec 24, 2024 pm 04:42 PM

PHP 8.4 brings several new features, security improvements, and performance improvements with healthy amounts of feature deprecations and removals. This guide explains how to install PHP 8.4 or upgrade to PHP 8.4 on Ubuntu, Debian, or their derivati

How To Set Up Visual Studio Code (VS Code) for PHP Development How To Set Up Visual Studio Code (VS Code) for PHP Development Dec 20, 2024 am 11:31 AM

Visual Studio Code, also known as VS Code, is a free source code editor — or integrated development environment (IDE) — available for all major operating systems. With a large collection of extensions for many programming languages, VS Code can be c

Explain JSON Web Tokens (JWT) and their use case in PHP APIs. Explain JSON Web Tokens (JWT) and their use case in PHP APIs. Apr 05, 2025 am 12:04 AM

JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,

How do you parse and process HTML/XML in PHP? How do you parse and process HTML/XML in PHP? Feb 07, 2025 am 11:57 AM

This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an

Explain late static binding in PHP (static::). Explain late static binding in PHP (static::). Apr 03, 2025 am 12:04 AM

Static binding (static::) implements late static binding (LSB) in PHP, allowing calling classes to be referenced in static contexts rather than defining classes. 1) The parsing process is performed at runtime, 2) Look up the call class in the inheritance relationship, 3) It may bring performance overhead.

PHP Program to Count Vowels in a String PHP Program to Count Vowels in a String Feb 07, 2025 pm 12:12 PM

A string is a sequence of characters, including letters, numbers, and symbols. This tutorial will learn how to calculate the number of vowels in a given string in PHP using different methods. The vowels in English are a, e, i, o, u, and they can be uppercase or lowercase. What is a vowel? Vowels are alphabetic characters that represent a specific pronunciation. There are five vowels in English, including uppercase and lowercase: a, e, i, o, u Example 1 Input: String = "Tutorialspoint" Output: 6 explain The vowels in the string "Tutorialspoint" are u, o, i, a, o, i. There are 6 yuan in total

What are PHP magic methods (__construct, __destruct, __call, __get, __set, etc.) and provide use cases? What are PHP magic methods (__construct, __destruct, __call, __get, __set, etc.) and provide use cases? Apr 03, 2025 am 12:03 AM

What are the magic methods of PHP? PHP's magic methods include: 1.\_\_construct, used to initialize objects; 2.\_\_destruct, used to clean up resources; 3.\_\_call, handle non-existent method calls; 4.\_\_get, implement dynamic attribute access; 5.\_\_set, implement dynamic attribute settings. These methods are automatically called in certain situations, improving code flexibility and efficiency.

PHP and Python: Comparing Two Popular Programming Languages PHP and Python: Comparing Two Popular Programming Languages Apr 14, 2025 am 12:13 AM

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

See all articles