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REGEX for mm/dd/yyyy

Posted on 2010-09-11
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Last Modified: 2013-12-24
Hi,
Does anyone have a simple regex to just verify "mm/dd/yyyy" where the "m", "d" and "y" are numeric.  I have a server side test for a valid date (in Coldfusion) but it accepts any valid date format.  I'd like to force the input to be mm/dd/yyyy and edit it on the server.

Thanks in advance,
hefterr
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Question by:hefterr
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5 Comments
 
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Accepted Solution

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Patrick Matthews earned 500 total points
ID: 33653727
This does not test for a proper month-end date (e.g., it will accept 02/31/2010):

^[01][1-9]/[0-3]\d/\d{4}$
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Author Comment

by:hefterr
ID: 33653800
Hey matthewspatrick,
Thanks much!  Works great!  
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Expert Comment

by:ozo
ID: 33655362
but it doesn't accept 10/10/2010
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Author Comment

by:hefterr
ID: 33656505
Hi ozo and matthewspatrick,
hmmmmm, so should it just be : ^[01][0-9]/[0-3]\d/\d{4}$        ??

hefterr
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LVL 84

Expert Comment

by:ozo
ID: 33657414
I think that would be better
[0-9] can also be written \d
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