you can put below code in the connection php file is made:

<?php
$servername="localhost";
$username="root";
$password="";
$dbname="nameofdatabase";enter code here
$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
die("connection failed" .$conn->connect_error);
}else
echo "connection sucssessfullly";
$conn->query("SET NAMES 'utf8'");
$conn->query("SET CHARACTER SET utf8");
?>