Danish CPR number
Regular expression:
^(0[1-9]|[12]\d|3[01])((0[1-9])|(1[0-2]))[0-9]{2}(\Q-\E)?[0-9]{4}$
Categories:
Popularity:
You need to be logged in to cast votes on regexes.
 |
 |
| Good 0 |
Bad 0 |
Author description and comments (2)
Description
Definately not the most advanced and accurate Danish CPR (social security) number validation regex, but it's pretty useful and easy to figure out.
I'm afraid this will fail on some inputs, The dates of 10,20 of the month will fail.
I would switch out the "^(((0|1|2)[1-9])|(3[0-1]))" part with "^(0[1-9]|[12]\d|3[01])"
I would switch out the "^(((0|1|2)[1-9])|(3[0-1]))" part with "^(0[1-9]|[12]\d|3[01])"
Hi broberg,
Thanks for noting this issue with the regex! I've updated it with your fine suggestion! :-)
Thanks for noting this issue with the regex! I've updated it with your fine suggestion! :-)
Log in by clicking the login link at the top of the screen
