Reading an Image file from a mysql database using php -

i trying display image, webpage displays encoding stuff instead. below code:

<?php ob_start();?>  // html markups goes here  <?php include 'login.php'; if(isset($_get['productid'])){     $productid = $_get['productid'];      $sql = "select tyre_image tyres product_id = '$productid'";     $result = mysql_query($sql) or die(mysql_error());     header("content-type :image/jpg");     echo mysql_result($result,0);  }  ob_end_flush();  ?> 

i using $_get associative array($_get['variable']) product id via link on page.

how fix this?

i had no idea content-type header picky, change spacing around colon (and image/jpg should image/jpeg):

header("content-type: image/jpeg"); 

per answer below, agree - fix assumes script used displaying image in html, ala <img src="path/to/your/image.php?productid=123" />.

further light reading on image/jpeg mime type spec here.