（1）cd /usr/local/php-5.2.17/ext/mysqli
（2）输入/usr/local/php/bin/phpize 回车
（3）./configure --prefix=/usr/local/mysqli --with-php-config=/usr/local/php/bin/php-config --with-mysqli=/usr/bin/mysql_config
（4）make
(5)make test
(6)make intall
(7)成功后在/usr/local/php/lib/php/extensions/no-debug-non-zts-20060613/下生成mysqli.so文件
(8)创建ext目录 cd /usr/local/php/ mkdir ext
(9)将mysqli.so文件copy 到ext下
cp /usr/local/php/lib/php/extensions/no-debug-non-zts-20060613/mysqli.so /usr/local/php/ext
（10）vi /usr/local/php/lib/php.ini
修改extension_dir="/usr/local/php/ext"
添加 extension=mysqli.so
保存php.ini文件
（11）重启/usr/local/php/sbin/php-fpm restart
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Cannot find autoconf. Please check your autoconf installation and the $PHP_AUTOCONF environment variable. Then, rerun this script.
运行/usr/local/webserver/php/bin/phpize时出现： Configuring for: PHP Api Version: 20041225 Zend Module Api No: 20060613 Zend Extension Api No: 220060519 Cannot find autoconf. Please check your autoconf installation and the $PHP_AUTOCONF environment variable. Then, rerun this script. 根据网上的解决办法是： # cd /usr/src # wget http://ftp.gnu.org/gnu/m4/m4-1.4.9.tar.gz # tar -zvxf m4-1.4.9.tar.gz # cd m4-1.4.9/ # ./configure && make && make install # cd ../ # wget http://ftp.gnu.org/gnu/autoconf/autoconf-2.62.tar.gz # tar -zvxf autoconf-2.62.tar.gz # cd autoconf-2.62/ # ./configure && make && make install 可爱的yum让我更容易把没安装的包安装好 yum install m4 yum install autoconf
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