php - how to match numbers with dash or space in between -

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• regular expression match 7-12 digits; may contain space or hyphen 4 answers

i have following regex:

preg_match_all('/(\d+)/', $bio, $matches); 

this match consecutive numbers such 1928371921, wanted match following format.

0812-123-1288 

or

0812 123 1288 

what best way modify above regex handle such cases?

you can use following:

preg_match_all('/\d+(?:[- ]\d+)*/', $bio, $matches);