mysql

@@ -42,10 +42,22 @@ class Db {
         return $this->client;
     }
 
+    private $host='';
+    private $prot=3306;
+    private $user='';
+    private $pwd='';
+    private $database='';
 
-    public function __construct()
+
+    public function __construct($host='',$database='',$user='',$pwd='',$prot=3306)
     {
 
+        $this->host = $host ? $host : DB_HOST;
+        $this->prot = $prot ? $prot : DB_PORT;
+        $this->user = $user ? $user : DB_USER;
+        $this->pwd = $pwd ? $pwd : DB_PASSWORD;
+        $this->database = $database ? $database : DB_DATABASE;
+
 //        $this->connect();
 
     }
@@ -62,9 +74,9 @@ class Db {
         DBPOOLCONNECTFOR:
         try {
             $this->client = new \PDO(
-                'mysql:charset=utf8mb4;dbname='.DB_DATABASE.';host='.DB_HOST.';port='.DB_PORT,
-                DB_USER,
-                DB_PASSWORD,
+                'mysql:charset=utf8mb4;dbname='.$this->database.';host='.$this->host.';port='.$this->prot,
+                $this->user,
+                $this->pwd,
                 [
                     \PDO::ATTR_DEFAULT_FETCH_MODE => \PDO::FETCH_ASSOC,
                     \PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES 'utf8mb4'",