生成没有空格的路线

in my blog i set the route with the title of post

route:
    pattern:  /blog/{id}/{title}
    defaults: { _controller: AcmeBlogBundle:Blog:show }

if my title's blog is:

"Hello World"

my route is www.mysite.com/5/Hello World (with space) but i want remove spaces, and use _ like

Hello_World

and i have another question if my title is:

" l'ancora" how i can remove ' ? thx

i have to add some rules in mod rewrite? RewriteRule ^blog/([^_]*)([^]*?)\d*.php$ blog/$1-$2 [R=301,L]

In your case, the best is to use the Sluggable DoctrineExtension.