PHP Extension 扩展开发
第 23 章 PHP Extension 扩展开发目录
1. Extension Example
2. PHP_MINFO_FUNCTION
1. Extension Example
创建一个扩展只需要下面几个步骤
# cd php-5.4.14/ext/
# ./ext_skel --extname=netkiller
# cd netkiller
# /srv/php-5.4.8/bin/phpize
# ./configure --enable-netkiller --with-php-config=/srv/php-5.4.8/bin/php-config
# make
# make install
下面我们开始分部讲解，首先创建一个扩展。
./ext_skel --extname=netkiller
Creating directory netkiller
Creating basic files: config.m4 config.w32 .cvsignore netkiller.c php_netkiller.h CREDITS EXPERIMENTAL tests/001.phpt netkiller.php .
To use your new extension, you will have to execute the following steps:
1.$ cd ..
2.$ vi ext/netkiller/config.m4
3.$ ./buildconf
4.$ ./configure ---netkiller
5.$ make
6.$ ./php -f ext/netkiller/netkiller.php
7.$ vi ext/netkiller/netkiller.c
8.$ make
Repeat steps 3-6 until you are satisfied with ext/netkiller/config.m4 and
step 6 confirms that your module is compiled into PHP. Then, start writing
code and repeat the last two steps as often as necessary.
编辑config.m4
# vim netkiller/config.m4
PHP_ARG_ENABLE(netkiller, whether to enable netkiller support,
Make sure that the comment is aligned:
[--enable-netkiller Enable netkiller support])
去掉上面三行前的dnl， dnl 表示注释
# cat config.m4 | grep -v 'dnl'
PHP_ARG_ENABLE(netkiller, whether to enable netkiller support,
Make sure that the comment is aligned:
[--enable-netkiller Enable netkiller support])
if test "$PHP_netkiller" != "no"; then
PHP_NEW_EXTENSION(netkiller, netkiller.c, $ext_shared)
fi
执行 phpize
# cd netkiller
# /srv/php-5.4.8/bin/phpize
Configuring for:
PHP Api Version: 20100412
Zend Module Api No: 20100525
Zend Extension Api No: 220100525
# ./configure --enable-netkiller --with-php-config=/srv/php-5.4.8/bin/php-config
# make
# make install
# ls modules/
netkiller.lanetkiller.so
创建 ini 文件
cat >> /srv/php/etc/conf.d/netkiller.ini <<PHP
extension=netkiller.so
PHP
确认扩展看装成功
# /srv/php/bin/php -f netkiller.php
Functions available in the test extension:
confirm_netkiller_compiled
Congratulations! You have successfully modified ext/netkiller/config.m4. Module netkiller is now compiled into PHP.
# /srv/php-5.4.8/bin/php -m | grep netkiller
netkiller
创建 php 测试程序
vim test.php
<?php
echo confirm_netkiller_compiled('netkiller');
phpinfo();
输出结果
Congratulations! You have successfully modified ext/netkiller/config.m4. Module netkiller is now compiled into PHP.
netkiller
---------------------------
netkiller supportenabled
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