Description:
------------
The script will not do my sql statement if the ob_start() is called before my sql statement

Reproduce code:
---------------
<?php // first page of code
$name = basename($_FILES['userfile']['name']);
	$filename = $_FILES['userfile']['tmp_name'];
	$data = file_get_contents($filename);
	$filedata = mysql_real_escape_string($data);
	list($width, $height) = getimagesize($filename);
	$sql = "INSERT INTO `pictures` ( `id` , `name` , `height` , `width` , `type` , `data` ) VALUES ( '', '$name', '$height', '$width', 'a', '$filedata')";
	mysql_query($sql);
	require('./code/obufthumb.php');
	require('./database/sql.php');
 	$sql = "INSERT INTO `pictures` ( `id` , `name` , `height` , `width` , `type` , `data` ) VALUES ( '', '$name', '$newheight', '$newwidth', 'b', '$filedata')";
	mysql_query($sql);
?>
<?php // this is obufthumb.php
if($height > $width){
	$newheight = '120';
	$newwidth = '120' / $height * $width;
	}
else{
	$newwidth = '120';
	$newheight = '120' / $width * $height;
	}
$thumb = imagecreatetruecolor($newwidth, $newheight);
$source = imagecreatefromjpeg($filename);
imagecopyresized($thumb, $source, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
ob_start();
imagejpeg($thumb, NULL, 100);
$filedata = ob_get_contents();
ob_end_clean();
?>

Expected result:
----------------
is should insert 2 images into the database, one that is no more then 120px wide or tall.

Actual result:
--------------
it only inserts one into the database, the first one, with type a.

when i remove the ob_start() and ob_end_clean() it will work, both wil be inserted, but all the code of the jpeg is inserted into my screen