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Posted: **Sun Jul 03, 2016 8:21 pm**

I am trying to apply this regex to check for a valid UK driving licence number and it doesn't work is my syntax wrong?

^[A-Z9]{5}[0-9]([05][1-9]|[16][0-2])(0[1-9]|[12][0-9]|3[01])[0-9][A-Z9][0-9][A-Z0-9]([0-9]{2}?)$

Posted: **Sun Jul 03, 2016 10:25 pm**

Posted: **Mon Jul 04, 2016 8:02 am**

You may need to enclose in '/'

/^[A-Z9]{5}[0-9]([05][1-9]|[16][0-2])(0[1-9]|[12][0-9]|3[01])[0-9][A-Z9][0-9][A-Z0-9]([0-9]{2}?)$/

FormBuilder - RegEx question