public function close() {
		$this->isOpen=false;
		if ($this->conn1===null) return; // its already close
		@$this->conn1->close();
		@$this->conn1=null;
	}
public function close() {
		$this->isOpen=false;
		if ($this->conn1===null) return; // its already close
		@$this->conn1->close();
		@$this->conn1=null;
	}
public function close ( ) { $ this -> isOpen = false ; if ( $ this -> conn1 === null ) return ; // its already close @ $ this -> conn1 -> close ( ) ; @ $ this -> conn1 = null ; }
It closes the connection
@test void this()
It closes the connection