为PHP增加PDO-Mysql驱动,php增加pdo-mysql
为PHP增加PDO-Mysql驱动,php增加pdo-mysql
一、问题
公司有一台老的Linux服务器,Apache+MySQL+Php结构的, 要把最近做的一个PHP项目部署到上面,做为测试环境,
由于新项目是用PHP的YII框架开发的,而YII框架的数据访问使用PDO接口的,因此需要PDO_Mysql驱动的支持。
【注:当前,PDO已成为PHP访问数据库的主要方式,这也是面向接口编程的设计思想。
PHP高版本也都内置了PDO、PDO-SQLite、PDO-Mysql的支持。相信现在大部分的PHP服务器上都支持PDO了。
如果您现在还在用老的 mysql mysqli方式的话,不放用用PDO。】
二、思路
为PHP配置PDO-Mysql驱动无非两种方式,
一种是重新编译、安装、配置PHP,在configure的时候加上--with-pdo-mysql参数即可,
另外一种就是在现有PHP的基础上,增加一个pdo-mysql扩展。
本着方便快速的原则,我们选择了在现有基础上增加pdo-mysql driver的方式。
三、具体操作
0、准备
首先要知道自己当前的php安装在什么位置,假设位于 /user/local/php
目录结构大致是这样的,
bin
etc
include
lib
logs
man
找到这几个文件,下面会用到:
lib/php.ini php的配置文件,想必您不会陌生,也有可能在etc目录下,看您的具体情况
bin/phpize 这是在不重新编辑php的情况下,为php增加新的扩展的
bin/php-config php-config是个脚本文件,用来得到一些php的相关信息,比如php安装在哪个目录,扩展库路径是什么等等。 如果您的系统中安装了不止一个php版本, 这个参数会比较有用,用来指定您的扩展安装到哪个php版本上。
另外,要知道自己的Mysql安装在什么地方,
这里假设位于 /usr/local/mysql
1、下载pdo-mysql驱动的源码
网址在 http://pecl.php.net/package/PDO_MYSQL ,从官方网页可以看到这种方式已经不被鼓励使用了,
因为PDO都已经集成到PHP内核中了,只需编译的时候加个参数即可。
以下步骤按顺序操作:
wget http://pecl.php.net/get/PDO_MYSQL-1.0.2.tgz
tar zxvf PDO_MYSQL-1.0.2.tgz
cd PDO_MYSQL-1.0.2
/usr/local/php/bin/phpize
./configure --with-php-config=/usr/local/php/bin/php-config --with-pdo-mysql=/usr/local/mysql
make
make install
这时,pdo-mysql驱动就已经编译完成了,
一般就在这个目录
/usr/local/php/lib/php/extensions/no-debug-non-zts-20090626
这里是php扩展的存放位置,可能已经有了很多其他的扩展了,如memcache.so
查看一下该目录,应该已经可以看到 pdo_mysql.so 库文件了。
2、配置php.ini文件
vi /usr/local/php/lib/php.ini
找到 extentions 这一个配置段, 接着增加 pdo_mysql.so 就行了
extension_dir = "/usr/local/php/lib/php/extensions/no-debug-non-zts-20060613/"
extension = "memcache.so"
extension = "pdo_mysql.so"
3、重启apache服务器,就算完成了
apache/bin/apachectl restart
4、phpinfo看一下,是否生效
写一个php文件,简单的一句话 phpinfo()
打开 http://www.aaa.com/test.php
搜索pdo
会看到如下的提示,说明pdo已经支持mysql驱动了,就可以在php中通过pdo操作mysql数据库了。
PDO drivers sqlite, sqlite2, mysql

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