Can't get regex to match properly

[SGBoise]

I am trying to match this uri. Also I want 3 to match as id and 45 in pictures45.html as pagenumber.

/category/3/pictures45.html

With this regex I got to match the category and id.

preg_match("/^\/category\/(?P<id>\d+)/", $url, $matches);

With this regex I got to match the pagenumber.

preg_match("/(?P<pagenumber>\d).html/", $url, $matches);

I figured I can combine both the regex and it should work but I can't get it to work.

preg_match("/^\/category\/(?P<id>\d+)(?P<pagenumber>\d).html/", $url, $matches);

What am I doing wrong?

Thanks guys

 

[DylanButler]

This one worked for me:

/category/([0-9]+)/pictures([0-9]+).html

 

[SGBoise]

This one worked for me:

/category/([0-9]+)/pictures([0-9]+).html

Thanks buddy.