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Symfony2 – Franz Jordán 2011
To generate a URL, you need to specify the name of the route (e.g. blog_show) and any
wildcards (e.g. slug = my-blog-post) used in the pattern for that route. With this
information, any URL can easily be generated:
class MainController extends Controller
{
public function showAction($slug)
{
// ...
}
}
$url = $this->get('router')->generate('blog_show', array('slug' => 'my-blog-post'));
In an upcoming section, you'll learn how to generate URLs from inside templates.
Generating Absolute URLs
By default, the router will generate relative URLs (e.g. /blog). To generate an absolute URL,
simply pass true to the third argument of the generate() method:
$router->generate('blog_show', array('slug' => 'my-blog-post'), true);
// http://www.example.com/blog/my-blog-post
The host that's used when generating an absolute URL is the host of the currentRequest object.
This is detected automatically based on server information supplied by PHP. When generating
absolute URLs for scripts run from the command line, you'll need to manually set the desired
host on the Request object:
$request->headers->set('HOST', 'www.example.com');
Generating URLs with Query Strings
The generate method takes an array of wildcard values to generate the URI. But if you pass
extra ones, they will be added to the URI as a query string:
$router->generate('blog', array('page' => 2, 'category' => 'Symfony'));
// /blog/2?category=Symfony
Generating URLs from a template
The most common place to generate a URL is from within a template when linking between
pages in your application. This is done just as before, but using a template helper function:
Read this blog post.
Absolute URLs can also be generated.
Read this blog post.
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