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regex and dates


crunchie

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Can anyone help me? I'm trying to write  a regex for the date mmm-dd-yyyy and have it validate the year so it cannot be later than the current year.  All I have so far is this

$birth_date = "$_Get['birthdate']";

if(preg_match("/([^abc.])-(0[1-9]|[1-2][0-9]|30)-[0-9]{4}$/",$birth_date)){

echo "Your birthday is on: $birth_date<br>";

}else{

echo "Not a vaild date.<br>";

}

 

I'm not sure how to proceed with the validation of the year.

Any suggestions will be greatly appreciated.  Thanks.

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This is not something that Regex is suited for. It is for matching pattern sequences not making numerical comparisons. Capture the year as part of the pattern and compared it against date('Y') afterwards. Though there are probably better ways to validate a date than using Regex.

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