Snappy is a PHP (5.6 ) wrapper for the wkhtmltopdf conversion utility. It allows you to generate either pdf or image files from your html documents, using the webkit engine.
The KnpSnappyBundle provides a simple integration for your Symfony project.
With composer, require:
composer require knplabs/knp-snappy-bundle
Then enable it in your kernel (optional if you are using the Flex recipe with Symfony >= 4) :
// config/bundles.php
<?php
return [
//...
Knp\Bundle\SnappyBundle\KnpSnappyBundle::class => ['all' => true],
//...
];If you need to change the binaries, change the instance options or even disable one or both services, you can do it through the configuration.
# app/config/config.yml (or config/packages/knp_snappy.yaml if using Symfony4 and the Flex recipe)
knp_snappy:
pdf:
enabled: true
binary: /usr/local/bin/wkhtmltopdf #"\"C:\\Program Files\\wkhtmltopdf\\bin\\wkhtmltopdf.exe\"" for Windows users
options: []
image:
enabled: true
binary: /usr/local/bin/wkhtmltoimage #"\"C:\\Program Files\\wkhtmltopdf\\bin\\wkhtmltoimage.exe\"" for Windows users
options: []If you want to change temporary folder which is sys_get_temp_dir() by default, you can use
# app/config/config.yml (or config/packages/knp_snappy.yaml if using Symfony4 and the Flex recipe)
knp_snappy:
temporary_folder: "%kernel.cache_dir%/snappy"You can also configure the timeout used by the generators with process_timeout:
# app/config/config.yml (or config/packages/knp_snappy.yaml if using Symfony4 and the Flex recipe)
knp_snappy:
process_timeout: 20 # In secondsThe bundle registers two services:
- the
knp_snappy.imageservice allows you to generate images; - the
knp_snappy.pdfservice allows you to generate pdf files.
// @var Knp\Snappy\Image
$knpSnappyImage->generate('http://www.google.fr', '/path/to/the/image.jpg');// @var Knp\Snappy\Pdf
$knpSnappyPdf->generate('http://www.google.fr', '/path/to/the/file.pdf');// @var Knp\Snappy\Pdf
$knpSnappyPdf->generate(array('http://www.google.fr', 'http://www.knplabs.com', 'http://www.google.com'), '/path/to/the/file.pdf');// @var Knp\Snappy\Pdf
$knpSnappyPdf->generateFromHtml(
$this->renderView(
'MyBundle:Foo:bar.html.twig',
array(
'some' => $vars
)
),
'/path/to/the/file.pdf'
);use Knp\Bundle\SnappyBundle\Snappy\Response\JpegResponse;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
class SomeController extends AbstractController
{
public function imageAction(Knp\Snappy\Image $knpSnappyImage)
{
$html = $this->renderView('MyBundle:Foo:bar.html.twig', array(
'some' => $vars
));
return new JpegResponse(
$knpSnappyImage->getOutputFromHtml($html),
'image.jpg'
);
}
}use Knp\Bundle\SnappyBundle\Snappy\Response\PdfResponse;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
class SomeController extends AbstractController
{
public function pdfAction(Knp\Snappy\Pdf $knpSnappyPdf)
{
$html = $this->renderView('MyBundle:Foo:bar.html.twig', array(
'some' => $vars
));
return new PdfResponse(
$knpSnappyPdf->getOutputFromHtml($html),
'file.pdf'
);
}
}use Knp\Bundle\SnappyBundle\Snappy\Response\PdfResponse;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
class SomeController extends AbstractController
{
public function pdfAction(Knp\Snappy\Pdf $knpSnappyPdf)
{
$pageUrl = $this->generateUrl('homepage', array(), true); // use absolute path!
return new PdfResponse(
$knpSnappyPdf->getOutput($pageUrl),
'file.pdf'
);
}
}KNPLabs is looking for maintainers (see why).
If you are interested, feel free to open a PR to ask to be added as a maintainer.
We’ll be glad to hear from you :)
SnappyBundle and Snappy are based on the awesome wkhtmltopdf. SnappyBundle has been developed by KnpLabs.