title: php function variable scope
body: <p>I was wondering if i have a function like this:</p>
  
  <pre><code>function isAdmin ($user_id) {
  
      $admin_arr = array(1, 2);
  
      foreach ($admin_arr as $value) {
  
          if ($value == $user_id) {
              return true;
          }
      }
  
      return false;
  }
  </code></pre>
  
  <p>Could i make an array outside of that function as a global array and use it inside the function without sending it through as a parameter, also instead declaring a new admin array inside the function as i just did above? How would i do this? </p>
  
  <p>Regards,
  Alexander</p>