The content of this article is about the module extension of PHP7 kernel analysis 11. Now I share it with you. Friends in need can refer to it
1. Compilation tools
(a).ext_skel: This script mainly generates the configuration required for compilation and the basic structure of the extension
(b).php-config: This script mainly obtains PHP installation information
(c).phpize: used to generate configure files
2. Basic steps for writing extensions
a. Generate the basic framework of the extension through the ext_skel script in the ext directory;
./ext_skel --extname=wu
b. Modify the config.m4 configuration: set the compilation configuration parameters, set the extended source file, dependency library/function check, etc.;
PHP_ARG_WITH(arg_name,check message,help info): 定义一个--with-feature[=arg]这样的编译参数,参数分别为 参数名、执行./configure是展示信息、执行--help时展示信息 $PHP_参数名:获取对应的参数值
PHP_ARG_ENABLE(arg_name,check message,help info): 定义一个--enable-feature[=arg]或--disable-feature参 数,--disable-feature等价于--enable-feature=no,这个宏与PHP_ARG_WITH类似,通常情况下如果配置的参数需 要额外的arg值会使用PHP_ARG_WITH,而如果不需要arg值,只用于开关配置则会使用PHP_ARG_ENABLE。
./configure时输出结果,其中error将会中断configure执行 AC_MSG_CHECKING(message) AC_MSG_RESULT(message) AC_MSG_ERROR(message)
AC_DEFINE(variable, value, [description]): 定义一个宏,比如:AC_DEFINE(IS_DEBUG, 1, []),执行autoheader 时将在头文件中(config.h)生成:#define IS_DEBUG 1。
PHP_ADD_INCLUDE(path): 添加include路径,即:gcc -Iinclude_dir
PHP_CHECK_LIBRARY(library, function [, action-found [, action-not-found ]]): 检查依赖的库中是否存在需要 的function,action-found为存在时执行的动作,action-not-found为不存在时执行的动作
PHP_ADD_LIBRARY_WITH_PATH($LIBNAME, $XXX_DIR/$PHP_LIBDIR, XXX_SHARED_LIBADD): 添加链接库
PHP_NEW_EXTENSION(extname, sources [, shared]): 注册一个扩展,添加扩展源文件,确定此扩展是动态库还是静态库,每个扩展的config.m4中都需要通过这个宏完成扩展的编译配置。
c. Write the function to be implemented by the extension: write the function according to the format of the PHP extension and the API provided by PHP;
PHP_MINIT_FUNCTION(mytest){ 这个阶段可以进行内部类的注册,如果你的扩展提供 了类就可以在此函数中完成注册;除了类还可以在此 函数中注册扩展定义的常量 } PHP_RINIT_FUNCTION(mytest){ 如果你的扩展需要针对每一个请求进行处理则可以设 置这个函数,如:对请求进行filter } PHP_RSHUTDOWN_FUNCTION(mytest){ 此函数在请求结束时被调用 } PHP_MSHUTDOWN_FUNCTION(mytest){ 模块关闭阶段回调的函数,与module_startup_func对应, 此阶段主要可以进行一些资源的清理 } PHP_FUNCTION(my_func_1){ 自定义内部函数1 } PHP_FUNCTION(my_func_1){ 自定义内部函数2(带参) zval *arr; //L当数据溢出不报错,s需要第四参数, //l(L)整型,(b)布尔型,(d)浮点型,s(S)字符串型,a(A)数组型,o(O)对象型,r资源型,z任意类型 if(zend_parse_parameters(ZEND_NUM_ARGS(), "la", &lval, &arr) == FAILURE){ RETURN_FALSE; } } const zend_function_entry mytest_functions[] = { PHP_FE(my_func_1, NULL) PHP_FE(my_func_2, NULL) PHP_FE_END //末尾必须加这个 }; zend_module_entry mytest_module_entry = { STANDARD_MODULE_HEADER, //宏统一设置 "mytest", //模块名 mytest_functions, //自定义函数数组 PHP_MINIT(mytest), //扩展初始化回调函数 PHP_MSHUTDOWN(mytest), //扩展关闭时回调函数 PHP_RINIT(mytest), //请求开始前回调函数 PHP_RSHUTDOWN(mytest), //请求结束时回调函数 NULL, //PHP_MINFO(mytest),php_info展示的扩展信息处理函数 "1.0.0", STANDARD_MODULE_PROPERTIES //宏统一设置 }; ZEND_GET_MODULE(mytest) //读取mytest_module_entry结构体
d. Generate configure: After the extension is written, execute the phpize script to generate configure and other configuration files ;
phpsize
e. Compile & install: ./configure, make, make install, and then add the extended .so path to php.ini.
./configure make make install
Related recommendations:
PHP7 Kernel Analysis 10: Thread Safety
PHP7 Kernel Analysis 9: Memory Management
PHP7 Kernel Analysis 8 and the like
The above is the detailed content of PHP7 Kernel Analysis 11 Module Extension. For more information, please follow other related articles on the PHP Chinese website!

在php5中,我们可以使用fsockopen()函数来检测TCP端口。这个函数可以用来打开一个网络连接和进行一些网络通信。但是在php7中,fsockopen()函数可能会遇到一些问题,例如无法打开端口、无法连接到服务器等。为了解决这个问题,我们可以使用socket_create()函数和socket_connect()函数来检测TCP端口。

php7.0安装mongo扩展的方法:1、创建mongodb用户组和用户;2、下载mongodb源码包,并将源码包放到“/usr/local/src/”目录下;3、进入“src/”目录;4、解压源码包;5、创建mongodb文件目录;6、将文件复制到“mongodb/”目录;7、创建mongodb配置文件并修改配置即可。

解决 PHP 7.0 中插件未显示已安装问题的方法:检查插件配置并启用插件。重新启动 PHP 以应用配置更改。检查插件文件权限,确保其正确。安装丢失的依赖项,以确保插件正常运行。如果其他步骤均失败,则重建 PHP。其他可能原因包括插件版本不兼容、加载错误版本或 PHP 配置问题。

PHP8相较于PHP7在性能、新特性和语法改进、类型系统、错误处理和扩展等方面都有一些优势和改进。然而,选择使用哪个版本要根据具体的需求和项目情况来决定。详细介绍:1、性能提升,PHP8引入了Just-in-Time(JIT)编译器,可以提高代码的执行速度;2、新特性和语法改进,PHP8支持命名参数和可选参数的声明,使得函数调用更加灵活;引入了匿名类、属性的类型声明等等。

PHP服务器环境常见的解决方法包括:确保已安装正确的PHP版本和已复制相关文件到模块目录。临时或永久禁用SELinux。检查并配置PHP.ini,确保已添加必要的扩展和进行正确设置。启动或重启PHP-FPM服务。检查DNS设置是否存在解析问题。

php7.0安装部署的方法:1、到PHP官网下载与本机系统对应的安装版本;2、将下载的zip文件解压到指定目录;3、打开命令行窗口,在“E:\php7”目录下运行“php -v”命令即可。

随着互联网技术的发展,计算机编程语言也随之不断发展和更新。PHP作为一种广泛应用于Web开发领域的编程语言,在多年的发展中经历了多个版本的更新,而最新版的PHP7又在性能和稳定性上有了巨大提升。为了能更好地应用PHP编程语言,这篇文章将介绍PHP7的下载和安装教程,供初学者参考。

php7和php5语法区别有:1、PHP7引入了严格的类型声明,而PHP5变量的类型是隐式的;2、PHP7引入了对标量类型声明的支持,而PHP5并没有;3、PHP7引入了NULL合并运算符,而PHP5检查一个变量是否存在并且不为null,需要使用条件语句;4、PHP7添加了新的比较运算符“<=>”,而PHP5并没有;5、PHP7引入新特性匿名类,而PHP5并没有。


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

Atom editor mac version download
The most popular open source editor

Dreamweaver Mac version
Visual web development tools

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.
