11.5.3.4 use script language to connect a database 

PHP & MySQL database. Connect to database 

If you have created database in phphMyAdmin, you need connect to database all webpages of website.

For if better create separate file for connection:

File connect.php

<?php
    $username = 'root'; # default user 'root' in phpMyAdmin
    $userpassword = ''; # default no password of user 'root'
    $dbname = 'database_name'; # name of your database
    $servername = 'localhost'; # name of web server 
    # create variable of connection
    $conn = mysqli_connect($servername, $username, $userpassword,  $dbname);
    # check if no connect then stop script
    if(!$conn){
        die("Connection failed: " . mysqli_connect_error());
    }
    echo "Connected successfully";
?>

Check connection with database in webbrowser.

This file you can include to php files where will implement SQL queries.

Part 4. PHP. Create connection with database (in russian)

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