Posted By

shodan_uk on 05/02/11

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regex
date
validation

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Last Edited at 05/02/11 06:25am

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Comprehensive date validation regex pattern

/ Published in: Regular Expression

Ridiculously comprehensive date validation regex - matches dd/mm/yyyy or dd/mm/yy.

Also correctly matches number of days in months. ie. it won't match 30th Feb...

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^(?:(?:31(\/|-|\.)(?:0?[13578]|1[02]))\1|(?:(?:29|30)(\/|-|\.)(?:0?[1,3-9]|1[0-2])\2))(?:(?:1[6-9]|[2-9]\d)?\d{2})$|^(?:29(\/|-|\.)0?2\3(?:(?:(?:1[6-9]|[2-9]\d)?(?:0[48]|[2468][048]|[13579][26])|(?:(?:16|[2468][048]|[3579][26])00))))$|^(?:0?[1-9]|1\d|2[0-8])(\/|-|\.)(?:(?:0?[1-9])|(?:1[0-2]))\4(?:(?:1[6-9]|[2-9]\d)?\d{2})$

URL: http://RegExr.com?2rijn

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