title: isset function in php
body: <p>i was wondering if it 'is possible to get two isset function to work in 1 php file?'
  and if not how to combine two isset function into one?
  is there a simpler way to validate both recaptcha and the activation code in db?
  much thanks if anyone could guide me with a simpler way...</p>
  
  <p>Here is my current code recaptcha code:</p>
  
  <pre><code> if (isset($_POST["recaptcha_response_field"])) {
          $resp = recaptcha_check_answer ($privatekey,
                                          $_SERVER["REMOTE_ADDR"],
                                          $_POST["recaptcha_challenge_field"],
                                          $_POST["recaptcha_response_field"]);
  
          if ($resp-&gt;is_valid) {
                  echo "Account activated";
          } else {
                  # set the error code so that we can display it
                  $error = $resp-&gt;error;
                  echo "please try again";
          }
  } echo recaptcha_get_html($publickey, $error);
  </code></pre>
  
  <p>i would like to validate the registered user activation code as well so i created this:</p>
  
  <pre><code>if (isset($_GET['success']) === true &amp;&amp; empty($_GET['success']) === true)
  {
  ?&gt;
      &lt;h2&gt; Account activated! &lt;/h2&gt;
  &lt;?php
  }
  else if (isset($_GET['email'], $_GET['activation_code']) === true)
  {
      $email      = trim($_GET['email']);
      $activation_code    = trim($_GET['activation_code']);
  
      if (emailadd_exists($email) === false)
      {
          $errors[] = 'Email address cannot be found';
      }
  
      else if (activate($email, $activation_code) === false)
      {
          $errors[] = 'Problem encountered activating your account';
      }
  
      if (empty($errors) === false)
      {
  ?&gt;
      &lt;h2&gt; Oops &lt;/h2&gt;
  &lt;?php
      echo output_errors($errors);
      }
      else
      {
          header('Location: index.php');
          exit();
      }
  }
  else
  {
      echo 'error';
      exit();
  }
  ?&gt;
      &lt;br/&gt;
      &lt;br/&gt;
              &lt;form action="" method="post"&gt;
          &lt;ul&gt;
          &lt;li&gt;
              Activation code:&lt;br&gt;
              &lt;input name="activation_code" type="text"&gt;&lt;br/&gt;
              &lt;input type="submit" value="Verify" /&gt;
          &lt;/li&gt;
      &lt;/ul&gt;
      &lt;/form&gt;
  </code></pre>
  
  <p>how to combine the two isset function? or is there a simpler to do this...
  please guide me. thanks in advance.</p>