October 11th, 2012, 08:41 AM
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Registered User
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Join Date: Jul 2012
Posts: 12
Time spent in forums: 3 h 56 m 34 sec
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Using preg_match to check a string is an MD5 hash
Basically I want to check that a string is the result of an MD5 hash.
So the string must be 32 chars long and only contain a-f and 0-9 chars.
I have been doing it like this...
PHP Code:
if (!preg_match('/^[0-9a-f]{32}$/', $string)) {
// false
} else {
// true
}
I was wondering what other ways there are of checking? Have I missed anything, can my code return true for incorrect strings?
Cheers
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