Mysqli_close() function closes the previously opened database connection.
Syntax:
mysqli_close( connection );
Connection - specifies the Mysql connection to close.
Return value - TRUE on Success
FALSE on Failure.

In MySQLi extension "i" stands for improved.

MySQLi extension was introduced version 5.0.0.

MySQLi extension in PHP scripting language which gives access to the MySQL database.

The combination of PHP and MySQL has become very popular server side web scripting language in Internet.

Databases are connected with Programing language and perform the major operations like INSERT, SELECT UPDATE and DELETE using Structure Query Language (SQL).

To retrieve and manipulate the data from MySQL database server.

This function requires four parameters to connect to database server.

INSERT, SELECT,UPDATE and DELETE.

MySQLi is extension in PHP scripting language which gives access to the MYSQL database.

Relational Database Management System.

1. The mysqli_affected_rows() function returns the number of affected rows in the previous SELECT, INSERT, UPDATE, REPLACE,or DELETE query.
2. Syntax
mysqli_affected_rows( connection);

1.The mysqli_connect_error() function returns the error description from the last connection error, if any.
2.Syntax
mysqli_connect_error( );

1. The mysqli_fetch_assoc() function fetches a result row as an associative array .
2. Syntax
mysqIi_fetch_assoc(result);

1. A Web database is a database application designed to be managed and accessed through the Internet.
2. In other words, the light databases that support the web applications are also known as Web Databases