Question

What would be the regex to match — or not match — everything but a single digit?

For example,

• stack should match
• stack overflow should match
• 12389237 should match but
• 2 should not match

I’m on ^[^\d]+$, but apparently it doesn’t match my third condition.

EDIT:

This is for PHP by the way.

Answer 1

Break it down into two cases. Either match a single character that isn’t a digit, or match any string of length 2 or greater:

^(\D|.{2,})$