上传图片出错，这段代码小弟我以前用的时候没报错

	
		
		
	
	
		
War game - add your score

			
 	       		
       			include 'error_report.php';
			$photo_dir='images/';


			if(!empty($_POST['submit']))
			{
				$first_name=$_POST['first_name'];
				$last_name=$_POST['last_name'];
				$score=$_POST['score'];
				if(!file_exists($photo_dir))
				{
					mkdir($photo_dir);
				}
				if($_FILES['image_upload']['error']>0)
				{
					echo 'Error:'.$_FILES['image_upload']['error'].'
';
				}
				else{
					$dbc=mysqli_connect('localhost','root','pengyu2408','score_list')or die('error in connet');
					$query="INSERT INTO score_lis(first_name,last_name,score) VALUES('$first_name','$last_name','$score')";
					mysqli_query($dbc,$query)or die('error_2');
						$gpy=move_uploaded_file($_FILES['image_upload']['tmp_name'],$photo_dir.$_FILES['image_upload']['name']);
					
					echo '
Thanks for adding your new high score!
';
					echo '
FIRST_NAME:'.$first_name.'
';
					echo 'LAST_NAME:'.$last_name.'
';
					echo '
Score:'.$score.'
';
					echo '';
					echo '
<<Back to hight score
';
					//clear the score data to clear the form
					$firet_name="";
					$last_name="";
					mysqli_close($dbc);
				}
			}
		?>