用C开发PHP扩展 实例(基础版)
第一步:建立扩展骨架。
[html]
cd /usr/local/src/php-5.3.6/ext/
./ext_skel --extname=laiwenhui
cd /usr/local/src/php-5.3.6/ext/
./ext_skel --extname=laiwenhui第二步:修改编译参数。
[html] view plaincopyprint?cd php-5.3.6/ext/laiwenhui
vi config.m4
cd php-5.3.6/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:
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
[html]
vim php_laiwenhui.h
vim php_laiwenhui.h
在
PHP_FUNCTION(confirm_laiwenhui_compiled);
后面新增一行
PHP_FUNCTION(test);
[html]
vim laiwenhui.c
vim laiwenhui.c
在
PHP_FE(confirm_laiwenhui_compiled, NULL)
后面添加
PHP_FE(test, NULL)
**在文件最后面增加如下代码:**
[html]
PHP_FUNCTION(test)
{
char *arg = "This is my first extention!";
int len;
char *strg;
len = spprintf(&strg, 0, "%s\n", arg);
RETURN_STRINGL(strg, len, 0);
}
PHP_FUNCTION(test)
{
char *arg = "This is 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
[html]
/usr/local/php/bin/phpize
./configure --with-php-config=/usr/local/php/bin/php-config
make
make install
/usr/local/php/bin/phpize
./configure --with-php-config=/usr/local/php/bin/php-config
make
make install
我的PHP安装路径为:/usr/local/php
这个时候会生成一个文件 /usr/local/php/lib/php/extensions/no-debug-non-zts-20060613/laiwenhui.so
编辑PHP配置文件php.ini,添加扩展:
[html]
vim php.ini
vim php.ini在[PHP]模块下增加:
[html]
extension = laiwenhui.so
extension = laiwenhui.so把php.ini 文件中的 extension_dir 修改为该目录:
[html]
extension_dir = "/usr/local/php/lib/php/extensions/no-debug-non-zts-20060613/"
extension_dir = "/usr/local/php/lib/php/extensions/no-debug-non-zts-20060613/"
第五步:检查安装结果
1.重启php-fpm,ngixn
2./use/local/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 is 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。

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