MD5 hash
Regular expression:
^([a-f0-9]{32})$
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Author description and comments (2)
Description
Matches a 32-digit MD5 hash. Useful for validating hashed database-columns.
That will validate just about any string. If you want specifically an MD5 hash then it should be a-f 0-9 and 32 char. So with the example here I could drop a invalid hash string and still be verified as a valid one.
You're right! Guess this was just a case of very lazy reproduction. But I corrected it now! Thanks.
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