I am building a search script that will filter results based on ages. (Posts are people on my site) The age is entered as a date of birth in a custom field. I am confident I can write a function to convert this date of birth to an age, then add it again as another custom field.
My only worry is, what happens each year when they get older? I am not too sure what to do. I could have a script that runs each day...but this feels like a cheat.