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php database class pdo: a tool library extracted from the pdo method of micro engine to process databases

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Introduction

update time：2017-03-08

PDO (PHP Data Object) is a lightweight, PHP data connection extension with a compatible interface. It is an official PECL library of PHP. It is released with PHP 5.1 and requires the object-oriented support of PHP 5, so it is not available on earlier versions. not available. The data access abstraction layer it provides has the advantage of being independent of specific database types and provides a unified operating interface for the databases it supports. Currently supported databases include Cubrid, FreeTDS / Microsoft SQL Server / Sybase, Firebird/Interbase 6, IBM DB2, IBM Informix Dynamic Server, MySQL 3.x/4.x/5.x, Oracle Call Interface, ODBC v3 (IBM DB2 , unixODBC and win32 ODBC), PostgreSQL, SQLite 3 and SQLite 2, Microsoft SQL Server / SQL Azure, etc. Since PDO is a unified database operation interface implemented at the bottom layer, it can be used to implement more advanced database operations, such as scheduling of stored procedures, etc.

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