diff --git a/src/web/php/lib/connect_db.php b/src/web/php/lib/connect_db.php
index aa2ccdd..1acf559 100644
--- a/src/web/php/lib/connect_db.php
+++ b/src/web/php/lib/connect_db.php
@@ -15,7 +15,7 @@ class DBConnector
 	{
 		global $db_host, $db_user, $db_passwd, $db_name;
 
-		if (isset($db_host) && $db_host !== null ) {
+		if (isset($db_host) && $db_host !== null) {
 			// echo "db_host variable\n";
 			$this->db_host = $db_host;
 			$this->db_user = $db_user;
@@ -28,14 +28,10 @@ class DBConnector
 			$this->db_passwd = "sEobMPuJ2A8KTfwU";
 			$this->db_name = "chocomae";
 		}
-		$this->printDBVariables();
-
-		$this->connectDB();
 	}
 
 	function __destruct()
 	{
-		$this->closeDB();
 	}
 
 	public function connectDB()
@@ -43,30 +39,36 @@ class DBConnector
 		// connect db
 		$this->db_conn = new mysqli($this->db_host, $this->db_user, $this->db_passwd, $this->db_name);
 		if ($this->db_conn->connect_error) {
-			// set_error_message("Failed to connect DB: ".$this->db_conn->connect_error);
-			// send_result_fail();
-			echo "connection failed\n";
-			exit;
-		} else {
-			echo "connection succeeded\n";
-			$query = "USE chocomae";
-			$result = mysqli_query($this->db_conn, $query);
+			return false;
 		}
+
+		$query = "USE chocomae";
+		$result = mysqli_query($this->db_conn, $query);
+		if (!$result)
+			return false;
+
+		return true;
 	}
 
 	public function closeDB()
 	{
+		if (isset($this->db_conn) || $this->db_conn === null) {
+			return;
+		}
+
 		if ($this->db_conn->connect_error) {
 			$this->db_conn->close();
 		}
 	}
 
-	private function printDBVariables()
+	public function getDBVariables()
 	{
-		echo "host : ".$this->db_host."\n";
-		echo "user : ".$this->db_user."\n";
-		echo "passwd : ".$this->db_passwd."\n";
-		echo "name : ".$this->db_name."\n";
+		$variables = array();
+		$variables["host"] = $this->db_host;
+		$variables["user"] = $this->db_user;
+		$variables["passwd"] = $this->db_passwd;
+		$variables["name"] = $this->db_name;
+		return $variables;
 	}
 }
 
diff --git a/src/web/php/writing/player_list.php b/src/web/php/writing/player_list.php
index 1dc928a..dd527a2 100644
--- a/src/web/php/writing/player_list.php
+++ b/src/web/php/writing/player_list.php
@@ -3,8 +3,15 @@ header('Content-Type: application/json');
 
 include "./../lib/connect_db.php";
 
+
+$jsonReply = array();
+
 $db_conn = new DBConnector();
-// $db_conn->setup();
+$isConnected = $db_conn->connectDB();
+
+$jsonReply["isConnected"] = $isConnected;
+$jsonReply["dbVariables"] = $db_conn->getDBVariables();
+echo json_encode($jsonReply, JSON_UNESCAPED_UNICODE);
 
 
 /*
diff --git a/test/tdd.js b/test/tdd.js
index 1d60b34..50af472 100644
--- a/test/tdd.js
+++ b/test/tdd.js
@@ -1,3 +1,23 @@
+//////////////////////////////////////////////////
+// DBConnector
+
+QUnit.test( "DBConnector", function( assert ) {
+
+	var xhr = new XMLHttpRequest();
+	xhr.open("POST", "./../src/web/php/writing/player_list.php", true);
+	xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
+	xhr.onreadystatechange = function() {
+		if(xhr.readyState == 4 && xhr.status == 200) {
+			var replyJSON = JSON.parse(xhr.responseText);
+			console.log(replyJSON);
+		}
+	};
+	xhr.send();
+
+	assert.equal(1, 0, "DBConnector");
+});
+
+
 //////////////////////////////////////////////////
 // StringUtil