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What's SQL, MySQL, MySQLi, PDO?


Structured Query Lanaguage


Database System sama as [MSSQL,Oracle]
it is poplaur database connecting with PHP .

(DEPRECATED) The mysql functions are procedural and use manual escaping.
Mysql has extension to connect to db.


is a replacement for the mysql functions, with object-oriented and procedural versions. It has support for prepared statements.

PDO (PHP Data Objects)

is a general database abstraction layer with support for MySQL among many other databases. It provides prepared statements, and significant flexibility in how data is returned.


Relation Database Managment System

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