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<?php

$servername = "localhost";

$username = "root";

$password = "root";

// Create connection

$conn = mysqli_connect($servername, $username, $password);

mysqli_set_charset($conn, 'utf8' );

mysql_select_db("article");

// Detect connection

if (!$conn) {

die("Connection failed: " . mysqli_connect_error());

}

//echo "Connection successful";

?>

The above is the content of conn.php

functions.php I don’t know what it is. I just started learning and haven’t figured out what this file is supposed to do

If it is not a framework, it will be in the same directory.

There is also a problem with your database link