title: Symfony email validation (not using Form Framework)
body: <p>As the title suggest, I'm looking for a way to validate emails (or other string formats) using the Symfony Framework (without having to use the Form Framework).</p>
  
  <p>I've done some searching around, but every example given is using the Form classes...</p>
  
  <p>And I know that I can use external classes or libraries, but I'm just curious if there is something that I could use from within Symfony that'll work.</p>
  
  <p>Something like this would be ideal:</p>
  
  <pre><code>$email = "email@to.validate";
  
  $validator = new sfEmailValidator(); // just using this as an example - I know it doesn't work :p
  
  $validator-&gt;check($email); // returns true or false if it validates
  </code></pre>