title: Update PHP variable in switch statement (simple)
body: <p>In PHP, I have a value outside of a switch called $chickens, equal to 1. After going through a switch statement, I want the value to change to b.</p>
  
  <pre><code>//original value of var
  $chickens = 1;
  
  switch ($chickens) {
    case "0":
      $chickens === "a";
      break;
    case "1":
      $chickens === "b";
      break;
    case "2":
      $chickens === "c";
      break;
    case "3":
      $chickens === "b";
      break;
  }
  
  //want this to be "b" defined in switch
  echo $chickens;
  </code></pre>
  
  <p>For some reason the value does not update :(. Any Ideas</p>