Course Content

Course Content

Database Connection in PHP Part 1

A PHP database connection is a critical component for a web site. This topic will discuss the basics of setting up a database connection and how to connect to it from within your PHP scripts.


  • Create a connection.
  • Select database.
  • Perform database query.
  • Use return data.
  • Close connection.

Connect to MySQL with PHP. Using the MySQLi extension, PHP 5 and later can work with a MySQL database (the "i" stands for improved) PDO (Product Development Organization) (PHP Data Objects)

PDO (PHP Data Objects) is a PHP extension that acts as a database connection interface. It can do any database function and is not limited to MySQL, unlike MySQLi. It is more general than MySQL and enables for database flexibility. Prepared statements are supported by PDO on both the server and client sides.

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