How to check the data format in PHP

Question

I am trying to check a date format to see if I can check the data variable has certain format like MM-DD-YYYY. if not, then exit(). I am not sure how to check the format and wou

Answer 1

you can use regular expressions

if(preg_match("/([0-9]{2})\/([0-9]{2})\/([0-9]{4})/"))
{
    do something
}