php源码:/root//php-5.5.31
php安装: /usr/local/php

[root@ns root]# phpize
Cannot find config.m4.
Make sure that you run '/usr/local/php/bin/phpize' in the top level source directory of the module

[root@ns root]# phpize
Cannot find config.m4.
Make sure that you run '/usr/local/php/bin/phpize' in the top level source directory of the module

在/usr/local/src/php-4.3.5/ext下找到这个工具
来建立一个php扩展的一个框架
[root@ns ext]#cd /root/soft/php-5.3.4/ext/
[root@ns ext]# ./ext_skel --extname=my_module
Creating directory my_module
Creating basic files: config.m4 .cvsignore my_module.c php_my_module.h CREDITS EXPERIMENTAL tests/001.phpt my_module.php [done].

To use your new extension, you will have to execute the following steps:

1.  $ cd ..
2.  $ vi ext/my_module/config.m4
3.  $ ./buildconf
4.  $ ./configure --[with|enable]-my_module
5.  $ make
6.  $ ./php -f ext/my_module/my_module.php
7.  $ vi ext/my_module/my_module.c
8.  $ make
执行了这个步骤以后你会看到这样的结果
Repeat steps 3-6 until you are satisfied with ext/my_module/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.
这样以后我们会在这个目录下生成一个目录叫my_module
进入这里面我们看看
[root@ns ext]# cd my_module/
[root@ns my_module]# ls
config.m4  EXPERIMENTAL          my_module.php    tests
CREDITS    my_module.c  php_my_module.h

然后我们要修改文件顺序是
configue.m4
my_module.c
php_my_module.h

使用文本编辑器打开config.m4文件，文件内容大致如下：
dnl $Id$d
dnl config.m4 for extension my_module
dnl don't forget to call PHP_EXTENSION(my_module)
dnl Comments in this file start with the string 'dnl'.
dnl Remove where necessary. This file will not work
dnl without editing.
dnl If your extension references something external, use with:
dnl PHP_ARG_WITH(my_module, for my_module support,

dnl Make sure that the comment is aligned:
dnl [  --with-my_module             Include my_module support])

dnl Otherwise use enable:
dnl PHP_ARG_ENABLE(my_module, whether to enable my_module support,

dnl Make sure that the comment is aligned:
dnl [  --enable-my_module           Enable my_module support])

if test "$PHP_MY_MODULE" != "no"; then
  dnl If you will not be testing anything external, like existence of

  dnl headers, libraries or functions in them, just uncomment the

  dnl following line and you are ready to go.
  dnl Write more examples of tests here...
  PHP_EXTENSION(my_module, $ext_shared)

Fi
根据你自己的选择将
dnl PHP_ARG_WITH(my_module, for my_module support,

dnl Make sure that the comment is aligned:
dnl [  --with-my_module             Include my_module support])

修改成
PHP_ARG_WITH(my_module, for my_module support,

Make sure that the comment is aligned:
[  --with-my_module             Include my_module support])

或者将
dnl PHP_ARG_ENABLE(my_module, whether to enable my_module support,

dnl Make sure that the comment is aligned:
dnl [  --enable-my_module           Enable my_module support])

修改成
PHP_ARG_ENABLE(my_module, whether to enable my_module support,

Make sure that the comment is aligned:

[  --enable-my_module           Enable my_module support])
我这里用了后者
然后保存退出
然后在编辑
Vi my_module.c
将文件其中的下列代码进行修改

/* Every user visible function must have an entry in my_module_functions[].

*/
function_entry my_module_functions[] = {
        PHP_FE(say_hello,       NULL)  /* ?添加着一行代码 */

        PHP_FE(confirm_my_module_compiled,      NULL) /* For testing, remove later. */

        {NULL, NULL, NULL}      /* Must be the last line in my_module_functions[] */

};
在文件的最后添加下列代码
PHP_FUNCTION(say_hello)
{
        zend_printf("hello world/n");

}
保存文件退出
然后我们就可以在这个目录下使用上面的命令了
/usr/local/php/bin/phpize
执行以后会看到下面的
[root@ns my_module]# /usr/local/php/bin/phpize
Configuring for:
PHP Api Version:         20020918
Zend Module Api No:      20020429
Zend Extension Api No:   20050606
[root@ns my_module]#
然后执行./configure --enable-my_module --with-apxs=/usr/local/apache/bin/apxs --with-php-config=/usr/local/php/bin/php-config
我们在安装以后的php的bin目录下的可以找到这个文件的
php-config 和phpize
这一步骤一定要注意你的apache的apxs放在哪里了
然后执行make
你会看到出现错误了你重新定义了函数我们前面的
这个你在回头改一下这个文件把原来的函数删除掉在生成的文件里面会有同样的函数
你在加入你的代码
就可以通过了
这个时候会在当前的目录下生成一个目录叫modules他的下面就放着你要的
my_module.so文件
cp modules/my_module.so /usr/local/php/ext/
这里需要你先设置你的php的扩展目录的在
在php.ini里面
通过extension_dir
最后一不是你在php.ini文件中打开这个扩展
extension=my_module.so
然后
重新起动apache
用phpinfo来察看一下ok了

具体操作代码如下：

[root@localhost bin]# cd /root/
[root@localhost ~]# ls
anaconda-ks.cfg                                       Music
atomic-php55-php-cli-5.5.31-31.el6.art.x86_64.rpm     nginx-1.8.0
atomic-php55-php-common-5.5.31-31.el6.art.x86_64.rpm  nginx-1.8.0.tar.gz
atomic-php55-php-devel-5.5.31-31.el6.art.x86_64.rpm   php-5.5.31
Desktop                                               php-5.5.31.tar.bz2
Documents                                             Pictures
Downloads                                             Public
eaccelerator-master                                   rpmforge-release-0.5.3-1.el6.rf.x86_64.rpm
install.log                                           Templates
install.log.syslog                                    Videos
master.zip
[root@localhost ~]# cd php-5.5.31
[root@localhost php-5.5.31]# ls
acinclude.m4      INSTALL             php5.spec                         README.TESTING2
aclocal.m4        install-sh          php5.spec.in                      README.UNIX-BUILD-SYSTEM
build             libs                php.gif                           README.WIN32-BUILD-SYSTEM
buildconf         libtool             php.ini-development               run-tests.php
buildconf.bat     LICENSE             php.ini-production                sapi
CODING_STANDARDS  ltmain.sh           README.EXTENSIONS                 scripts
config.guess      main                README.EXT_SKEL                   server-tests-config.php
config.log        makedist            README.GIT-RULES                  server-tests.php
config.nice       Makefile            README.input_filter               snapshot
config.status     Makefile.frag       README.MAILINGLIST_RULES          stamp-h.in
config.sub        Makefile.fragments  README.md                         stub.c
configure         Makefile.gcov       README.namespaces                 svnclean.bat
configure.in      Makefile.global     README.NEW-OUTPUT-API             tests
CREDITS           Makefile.objects    README.PARAMETER_PARSING_API      travis
ext               makerpm             README.PHP4-TO-PHP5-THIN-CHANGES  TSRM
EXTENSIONS        missing             README.REDIST.BINS                UPGRADING
footer            mkinstalldirs       README.RELEASE_PROCESS            UPGRADING.INTERNALS
generated_lists   modules             README.SELF-CONTAINED-EXTENSIONS  vcsclean
genfiles          netware             README.STREAMS                    win32
header            NEWS                README.SUBMITTING_PATCH           Zend
include           pear                README.TESTING
[root@localhost php-5.5.31]# cd ext/
[root@localhost ext]# ./ext_skel --extname=my_module
Creating directory my_module
Creating basic files: config.m4 config.w32 .svnignore my_module.c php_my_module.h CREDITS EXPERIMENTAL tes
ts/001.phpt my_module.php [done].
To use your new extension, you will have to execute the following steps:

1.  $ cd ..
2.  $ vi ext/my_module/config.m4
3.  $ ./buildconf
4.  $ ./configure --[with|enable]-my_module
5.  $ make
6.  $ ./sapi/cli/php -f ext/my_module/my_module.php
7.  $ vi ext/my_module/my_module.c
8.  $ make

Repeat steps 3-6 until you are satisfied with ext/my_module/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.

[root@localhost ext]# cd my_module/
[root@localhost my_module]# ls
config.m4  config.w32  CREDITS  EXPERIMENTAL  my_module.c  my_module.php  php_my_module.h  tests
[root@localhost my_module]# vi config.m4
[root@localhost my_module]# cp config.m4 config.m4.bak
[root@localhost my_module]# vi config.m4
[root@localhost my_module]# cp my_module.c my_module.c.bak
[root@localhost my_module]# vi my_module.c
[root@localhost my_module]# /usr/local/php/bin/phpize
Configuring for:
PHP Api Version:         20121113
Zend Module Api No:      20121212
Zend Extension Api No:   220121212
[root@localhost my_module]#