初步介绍PHP扩展开发经验分享
环境:PHP 5.2.14 CentOS 5.5
第一步:建立扩展骨架
cd php-5.2.14/ext
./ext_skel –extname=laiwenhui
第二步:修改编译参数
cd php-5.2.14/ext/laiwenhui
vi config.m4
去掉
PHP_ARG_ENABLE(laiwenhui, whether to enable laiwenhui support,
[ --enable-laiwenhui Enable laiwenhui support])
两行前面的dnl
修改后为:
复制代码 代码如下:
dnl Otherwise use enable:
PHP_ARG_ENABLE(laiwenhui, whether to enable laiwenhui support,
dnl Make sure that the comment is aligned:
[ --enable-laiwenhui Enable laiwenhui support])
第三步:编写代码
vim php_laiwenhui.h
在 PHP_FUNCTION(confirm_laiwenhui_compiled); 后面新增一行:PHP_FUNCTION(test);
添加后为:
PHP_FUNCTION(confirm_laiwenhui_compiled); /* For testing, remove later. */
PHP_FUNCTION(test);
然后
vim laiwenhui.c
在PHP_FE(confirm_laiwenhui_compiled, NULL) 后面添加 PHP_FE(test, NULL)
添加后为:
复制代码 代码如下:
zend_function_entry laiwenhui_functions[] = {
PHP_FE(confirm_laiwenhui_compiled, NULL) /* For testing, remove later. */
PHP_FE(test, NULL) /* For testing, remove later. */
{NULL, NULL, NULL} /* Must be the last line in laiwenhui_functions[] */
};
在文件最后面增加如下代码:
复制代码 代码如下:
PHP_FUNCTION(test)
{
char *arg = “This my first extention!”;
int len;
char *strg;
len = spprintf(&strg, 0, “%s\n”, arg);
RETURN_STRINGL(strg, len, 0);
}
第四步:编译代码
复制代码 代码如下:
cd php-5.2.6/ext/laiwenhui
/opt/module/php/bin/phpize
./configure –with-php-config=/opt/module/php/bin/php-config
make
make install
我的PHP安装路径为:/opt/module/php
这个时候会生成一个文件 /opt/module/php/lib/php/extensions/no-debug-non-zts-20060613/laiwenhui.so
编辑PHP配置文件php.ini,添加扩展:
vim php.ini
在[PHP]模块下增加:extension = laiwenhui.so
;extension=php_zip.dll
extension = laiwenhui.so
把php.ini 文件中的 extension_dir 修改为该目录:
extension_dir = “/usr/local/php/lib/php/extensions/no-debug-non-zts-20060613/”
; Directory in which the loadable extensions (modules) reside.
extension_dir = “/opt/module/php/lib/php/extensions/no-debug-non-zts-20060613/”
第五步:检查安装结果
1. 重启apache或者php-fpm
2. /opt/module/php/bin/php -m 看下是否有包含laiwenhui扩展。
第六步:执行测试代码
在网站根目录创建test.php
vim test.php
代码内容如下
echo test();
?>
执行后结果为:This my first extention!
如果你能顺利完成以上几步,恭喜你完成了第一个扩展。
以上是扩展PHP的简单步骤,更多请参考:

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