getting database configuration into an external file

class.php

@@ -2,14 +2,19 @@
 
 class ps4 {
 
+    public function dbconf() {
+		global $dbconf;
+		$dbconf = require "dbconf.php";
+		return $dbconf;
+
+    }
+
 	function mysql_conn($sql=null) {
-		$servername = "10.99.0.1";
-		$username = "ps4";
-		$password = "zpmAeh9cXM7xyFR";
-		$dbname = "ps4";
+
+		$db = $this->dbconf();
 
 		// Create connection
-		$conn = new mysqli($servername, $username, $password, $dbname);
+		$conn = new mysqli($db["servername"], $db["username"], $db["password"], $db["dbname"]);
 		$conn->set_charset("utf8");
 		// Check connection
 		if ($conn->connect_error) {