title: How to generate a random, unique, alphanumeric string?
body: <p>How would it be possible to generate a random, unique string using numbers and letters for use in a verify link? Like when you create an account on a website, and it sends you an email with a link, and you have to click that link in order to verify your account</p>
  <p>How can I generate one of those using PHP?</p>