求助：如何安装 php的 ID3 Tags

如题，如何安装 php的 ID3 扩展？
查了 网上的 PHP Manual 手册
得到以下 信息

To install the PHP/Pecl audio file ID3 functions onto Fedora 13 with Apache 2.2.17:
1) Download PHP5.X or higher.
2) Configure, Make and Make Install PHP as desired.
2) After PHP is up and running download the latest version of ID3.X (0.2 or higher)
3) CD to php5.X/ext dir.
4) Uncompress ID3.x into the ext dir.
5) CD into your ID3.X dir.
6) Run the following:
  1) phpize (ignore phpize failed error).
  2) ./configure
  3) make
  4) make install
7) Add extension=/SomeDir/SomeDir/php-5.X/ext/id3-0.2/modules/id3.so to your php.ini file.
8) Restart Apache.
9) Test your installation with a MP3 that has valid ID3 Tags. I suggest that you edit your mp3 file with EasyTag or Kid3 (Preferred. Be sure to convert the tags to version 2.3 from the tools menu). 

本人英文水平有限
基本上只看懂两点：
1.下载 id3-0.2，2.修改 php.ini

id3-0.2 我已下载，但是php.ini我还真看不懂要怎么改
请高手帮帮忙，谢谢！

1) Download PHP5.X or higher.
  下载PHP5.*或者更高版本
2) Configure, Make and Make Install PHP as desired.
  编译php
2) After PHP is up and running download the latest version of ID3.X (0.2 or higher)
  启动php后下载ID3.X或者（0.2 或者更高版本）
3) CD to php5.X/ext dir.
  进入你编译好的php的ext目录下
4) Uncompress ID3.x into the ext dir.
  解压ID3.X 到 ext目录
5) CD into your ID3.X dir.
  进入ID3.X 目录
6) Run the following:
  执行如下方法编译安装ID3.X
  1) phpize (ignore phpize failed error).
  2) ./configure
  3) make
  4) make install
   
7) Add extension=/SomeDir/SomeDir/php-5.X/ext/id3-0.2/modules/id3.so to your php.ini file.
  在php.ini里面加入 extension=/SomeDir/SomeDir/php-5.X/ext/id3-0.2/modules/id3.so（你要先确定你的id3.so在那里）
8) Restart Apache.
  从新启动apache
9) Test your installation with a MP3 that has valid ID3 Tags. I suggest that you edit your mp3 file with EasyTag or Kid3 (Preferred. Be sure to convert the tags to version 2.3 from the tools menu). 
  测试你的安装，你可以用一个有ID3 Tag的MP3。。。。。

看不懂英文简单，可以问google这个科学家