php - How Can I access Database From One server -

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i have website abc runing on 1 server online , , have library inventry system 'xyz' in php runing on server have static ip 203.215.166.77, question how can access database abc xyz in php

mysqli

$mysqli = new mysqli('10.0.0.1', 'user', 'password', 'db', 'port ( imporant external connection ');

mysql

$link = mysql_connect('10.0.0.1:port', 'user', 'password');

you need open port database other server. can in firewall ( default port 3306 )


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