Does Craft / Twig support regex groups?

Question

I see Craft does support regex in replace search. But there is no info on using regex groups, ie string | replace('/this is a (string)/', 'This is another $1').

Is this feature implemented? If so - how?

Brandon Kelly · Accepted Answer

Yes.

{{ 'this is a string'|replace('/this is a (string)/', 'This is another $1') }}

will output

This is another string

When you pass something that looks like a regex into the |replace filter,  preg_replace() is called behind the scenes, so |replace can do anything preg_replace() can do.

Does Craft / Twig support regex groups?

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