Encoding problem

General General Questions
1

In core/db_mysql41.php:

<br />
function db_connect($db_host, $db_user, $db_password, $clean = false)<br />
{<br />
	$db_conn = mysqli_connect($db_host, $db_user, $db_password);<br />
	if ($db_conn) {<br />
		mysqli_set_charset($db_conn, 'utf8');<br />
		mysqli_query($db_conn, "SET collation_connection = 'utf8_general_ci'");<br />
	}<br />
	return $db_conn;<br />
}<br />
2

In trial all php files are coded, cann’t make any modifications.