The common Unix distributions include binary versions of PHP that can be installed. Although these binary versions are typically built with support for the MySQL extensions, the extension libraries themselves may need to be installed using an additional package. Check the package manager that comes with your chosen distribution for availability.
For example, on Ubuntu the
package installs the ext/mysql, ext/mysqli, and pdo_mysql PHP
extensions. On CentOS, the
package also installs these three PHP extensions.
Alternatively, you can compile this extension yourself. Building PHP from source allows you to specify the MySQL extensions you want to use, as well as your choice of client library for each extension.
The MySQL Native Driver is the recommended client library option, as it results in improved performance and gives access to features not available when using the MySQL Client Library. Refer to What is PHP's MySQL Native Driver? for a brief overview of the advantages of MySQL Native Driver.
/path/to/mysql_config represents the
location of the
mysql_config program that
comes with MySQL Server.
Table 3.3 mysqli compile time support matrix
|PHP Version||Default||Configure Options: mysqlnd||Configure Options: ||Changelog|
|5.4.x and above||mysqlnd||mysqlnd is the default|
|5.3.x||libmysqlclient||mysqlnd is supported|
|5.0.x, 5.1.x, 5.2.x||libmysqlclient||Not Available||mysqlnd is not supported|
Note that it is possible to freely mix MySQL extensions and
client libraries. For example, it is possible to enable the
MySQL extension to use the MySQL Client Library
(libmysqlclient), while configuring the
mysqli extension to use the MySQL Native
Driver. However, all permutations of extension and client
library are possible.