This worked for me.
function indexAction() {
// disable view and layout
Zend_Layout::getMvcInstance()->disableLayout();
$this->_helper->viewRenderer->setNoRender();
// setup realpath to image
$path_to_image = $_SERVER['DOCUMENT_ROOT'].'/images/EQ2_000192.jpg';
// set headers
header("Content-Type: image/jpeg");
// load image
$img = imagecreatefromjpeg($path_to_image);
// adjust quality
imagejpeg($img, NULL ,75);
// free memory used
imagedestroy($img);
}
Instead of using passed params I just tested with a hardcoded image.
Maybe add in a validate that the image exists, if using params as this other
way could lead to potential code injection with out validation.
// $img_dir = 'some dir';
// $image = $this->_getParam('image');
// $path_to_image = $img_dir . $image;
Also removed the exit as i've disabled the view rendering and the layout
rendering.
Terre
-----Original Message-----
From: unlex [mailto:dmitr...@yandex.ru]
Sent: Wednesday, June 17, 2009 5:37 AM
To: fw-general@lists.zend.com
Subject: [fw-general] Problem with raw image output
Hi,
I have the following problem. i need to output images thumbnails without
saving them to the disk. in other words I need to output raw image directly
to the browser. It's not a difficult task and I've done this many times BUT
not using ZF. But here I have a problem which I can't solve for several
days.
For example, I have the following URL
http://myhost/mymodule/mycontroller/...0617112012.JPG
which should output the thumbnail of the image.
(To simplify the example let's output just this image without thumbnailing
it.)
So I have the following code in myactionAction():
Code:
public function myactionAction()
{
$this->_helper->viewRenderer->setNoRender();
$img_dir = 'some dir';
$image = $this->_getParam('image');
$path_to_image = $img_dir . $image;
$img = imagecreatefromjpeg($path_to_image);
header('Content-type: image/jpeg');
imagejpeg($img,'',75);
exit;
}
So, unfortunately, this doesn't works. Browser outputs nothing.
If we don't send a header ( header('Content-type: image/jpeg') browser
outputs image in binary format, so there is not a problem with GD or image
creation. Moreover - if we write like that
imagejpeg($img,'temp.jpg',75);
we successefully get our image in temp.jpg. So saving works fine while
output doesn't work.
Can smb explain why I have such a strange problem?
Thanks in advance...
--
View this message in context:
http://www.nabble.com/Problem-with-raw-image-output-tp24070121p24070121.html
Sent from the Zend Framework mailing list archive at Nabble.com.
