Re: regexp novice

On 2012-05-17 22:37, Jim Giner wrote:

Trying to validate an input of a time value in the format hh:mm, wherein I'll accept anything like the following: hmm hhmm h:mm hh:mm in a 12 hour format. My problem is my test is ok'ing an input of 1300. Here is my test: if (0 == preg_match("/([0][1-9]|[1][0-2]|[1-9]):[0-5][0-9]/",$t))

     return true;

else

     return false;

Can someone help me correct my regexp?

/([0][1-9]|[1][0-2]|^[1-9]):[0-5][0-9]/ The third part of your alternate expressions matches "3:00" from the string "13:00" (it ignores the 1 at the beginning). Using ^ avoids this because now only one digit is allowed before the :. Bye, Andreas