PHP provides mysqli_connect() function to connect with database. This function has five parameter:

a)    Server: The host name running the database. If not defined then by default it is ocalhost.

b)   User: The username who is accessing the database.

c)    Password: The password given by the user who is accessing the database.

d)   new_link(): no new connection will be established.

e)    Client_flags : MYSQL_CLIENT_COMPRESS-use Compression protocol.