PHP echoing jpeg image fails, but writing same image to file works great. Why?

[mieso]

I have a function in PHP that calls curl to retrieve an image. When I print that to a file and examine it in the browser, the image looks great. When I use "echo" of the curl results as the return value from my PHP script, the browser shows the broken-image icon (see an example of that icon: http://www.artifacting.com/blog/wp-content/uploads/2007/01/error_icon.gif). \[code\]$ch = curl_init(); $options = array( CURLOPT_CONNECTTIMEOUT => 120, CURLOPT_TIMEOUT => 120, CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1, CURLOPT_FRESH_CONNECT => 1, CURLOPT_HEADER => 0, CURLOPT_USERAGENT => "Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)", CURLOPT_FOLLOWLOCATION => true, CURLOPT_HTTPPROXYTUNNEL => 1, CURLOPT_POST => 1, CURLOPT_RETURNTRANSFER => 1, CURLOPT_BINARYTRANSFER => 1,);curl_setopt($ch, CURLOPT_URL, $url);curl_setopt_array($ch, $options);curl_setopt($ch, CURLOPT_POSTFIELDS, $param_list);// The http response code is 200, and the body length is 50kb. $body = curl_exec($curl_params);// This produces a file containing an image that looks good when viewed in a browser.$bodyFile = @fopen("img.jpg", "w");fprintf($bodyFile, "%s", $body. "\n");fclose($bodyFile);// This does not render in the browser. Instead I see the broken image icon.$contentType = "image/jpeg";header('Content-type: ' . $contentType); echo $body;\[/code\]Any ideas? Help!