Sintaks error when i use foreach

[Stream]

The code below gives a sintaks error when I'am trying to send path to the db!
Could you please help me solve the problem

Error:

INSERT INTO imloop (', 'image1'') VALUES (','Z:\tmp\phpB8.tmp'')
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '', 'image1'') VALUES (','Z:\tmp\phpB8.tmp'')' at line 1

foreach($active_keys as $key)
{
	@move_uploaded_file($_FILES[$fieldname]['tmp_name'][$key], $uploadFilename[$key])
		or error('receiving directory insuffiecient permission', $uploadForm);
		
		
		$query_part_1 = '';
$query_part_2 = '';
$i = 1;
		
		   $query_part_1 .= ", 'image" . $i++ . "'";
    $query_part_2 .= ",'" . $uploadFilename[$key]. "'"; 


$query = "INSERT INTO `imloop` ('" .$query_part_1. "') VALUES ('" .$query_part_2. "')";
		
		
		mysql_query($query) or exit($query . '<br />' . mysql_error()); 
		
		mysql_close($connection);
	 }