■PDO为何物?
POD(PHP Data Object)扩展在PHP5中加入,PHP6中将默认识用PDO连接数据库,所有非PDO扩展将会在PHP6被从扩展中移除。该扩展提供PHP内置类 PDO来对数据库进行访问,不同数据库使用相同的方法名,解决数据库连接不统一的问题。
我是配置在windows下做开发用的。
■PDO的目标
■安装PDO
我这里是WINDOWS下开发用的PDO扩展,要是你要在Linux下安装配置,请到别的地方寻找。
版本要求:
php5.1以及以后版本的程序包里已经带了;
php5.0.x则要到pecl.php.net下载,放到你的扩展库,就是PHP所在的文件夹的ext文件夹下;
手册上说5.0之前的版本不能运行PDO扩展。
配置:
修改你的php.ini配置文件,使它支持pdo.(php.ini这个东西没有弄懂的话,先弄清楚,要修改调用你的phpinfo()函数所显示的那个php.ini)
把
extension=php_pdo.dll前面的分号去掉,分毫是php配置文件注释符号,这个扩展是必须的。
往下还有
;extension=php_pdo.dll
;extension=php_pdo_firebird.dll
;extension=php_pdo_informix.dll
;extension=php_pdo_mssql.dll
;extension=php_pdo_mysql.dll
;extension=php_pdo_oci.dll
;extension=php_pdo_oci8.dll
;extension=php_pdo_odbc.dll
;extension=php_pdo_pgsql.dll
;extension=php_pdo_sqlite.dll
各各扩展所对应的数据库是:
Driver name | Supported databases |
---|---|
PDO_DBLIB | FreeTDS / Microsoft SQL Server / Sybase |
PDO_FIREBIRD | Firebird/Interbase 6 |
PDO_INFOR |

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