Regex to allow alphanumeric and dot

Question

Hi I have a variable in a Silex route and we only allow alphanumeric values

->assert('hash','\w+')

I would like to also allow a dot in the variable, but my efforts at editing this regex have failed. Help greatly appreciated, thanks!

Answer 1

Try using a character class ([…]), like this:

[\w.]+

For example:

->assert('hash','[\w.]+')