สอบถามวิธีการอัพเดทไฟล์ ต่างๆที่เราเคยอัพโหลดไว้ใน path

<?
	
	session_start();
	include ("Connection.php");	
	$id = $_GET['id'];

	if($_POST["Submit"]){
		$strSQL = "UPDATE ProjectInfo SET 	ProjectName = '".$_POST['Name']."' , Description = '".$_POST['Description']."' ,
						Language = '".$_POST['Language']."' , Advisor = '".$_POST['Advisor']."' ,
						ProjectType = '".$_POST['rdoname']."' , CourseName = '".$_POST['CourProj']."' ,
						Year = '".$_POST['Year']."' , Question = '".$_POST['Question']."' ,
						Reward = '".$_POST['rew']."' 

			WHERE ID = '".$id."' ";
			$objQuery = mysql_query($strSQL);
			echo "Save Completed!<br>";		
											
	if(move_uploaded_file($_FILES["File"]["tmp_name"],"myfile/".$_FILES["File"]["name"])&&
		move_uploaded_file($_FILES["Pic"]["tmp_name"],"myfile/".$_FILES["Pic"]["name"]))
	{
		$strSQL .= "UPDATE ProjectInfo SET ProjectFile = '".$_FILES["File"]["name"]."' , ProjectPic = '".$_FILES["Pic"]["name"]."'
			WHERE ID = '".$id."' ";
			$objQuery = mysql_query($strSQL);
			echo "Save Completed!<br>";		
	}
		
	}else{
		echo "error";	
	}
	mysql_close();
?>