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PDO (PHP Data Objects) is a native data-access abstraction library that ships with PHP 5.1
and is offered as a PECL extension for PHP 5.0. (PECL is a repository of PHP extensions,
located at http://pecl.php.net/.) The official PDO manual, together with installation
instructions (which can also be found in Appendix A), is available at http://php.net/pdo.
PDO offers a uniform way to access a variety of data sources. Using PDO increases your
application’s portability and flexibility because if the backend database changes, the effects
on your data access code are kept to a minimum (in many cases, all that needs to change is
the connection string for the new database).
After you become familiar with the PDO data-access abstraction layer, you can use the
same programming techniques on other projects that might require a different database
solution.
and is offered as a PECL extension for PHP 5.0. (PECL is a repository of PHP extensions,
located at http://pecl.php.net/.) The official PDO manual, together with installation
instructions (which can also be found in Appendix A), is available at http://php.net/pdo.
PDO offers a uniform way to access a variety of data sources. Using PDO increases your
application’s portability and flexibility because if the backend database changes, the effects
on your data access code are kept to a minimum (in many cases, all that needs to change is
the connection string for the new database).
After you become familiar with the PDO data-access abstraction layer, you can use the
same programming techniques on other projects that might require a different database
solution.
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