added www

www/test_db_pdo.php

@@ -0,0 +1,15 @@
+<?php
+
+$DBuser = 'root';
+$DBpass = $_ENV['MYSQL_ROOT_PASSWORD'];
+$pdo = null;
+
+try{
+    $database = 'mysql:host=database:3306';
+    $pdo = new PDO($database, $DBuser, $DBpass);
+    echo "Success: A proper connection to MySQL was made! The docker database is great.";    
+} catch(PDOException $e) {
+    echo "Error: Unable to connect to MySQL. Error:\n $e";
+}
+
+$pdo = null;