title: PHP Warning: Cannot modify header information - headers already sent by (output started at.......on line 29
body: <p>Every time I try i click on send this error appears.
  I get the message on my email, but the problem is that it takes me to an error page instead of taking me to the page that i have specified.</p>
  
  <p>This is my code:</p>
  
  <pre><code>&lt;?php 
  $errors = '';
  $myemail = 'info@cherry-ao.com';//&lt;-----Put Your email address here.
  
  if(empty($_POST['name'])  ||  empty($_POST['email']) || empty($_POST['message']))
  {
      $errors .= "\n Error: all fields are required";
  }
  
  $name = $_POST['name']; 
  $email_address = $_POST['email']; 
  $message = $_POST['message']; 
  
  if (!preg_match("/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$/i", $email_address))
  {
      $errors .= "\n Error: Invalid email address";
  }
  
  if( empty($errors))
  {
      $to = $myemail; 
      $email_subject = "Contact form submission: $name";
      $email_body = "You have received a new message. Here are the details:\n Name: $name \n Email: $email_address \n Message \n $message"; 
      $headers = "From: $myemail\n"; 
      $headers .= "Reply-To: $email_address";
      mail($to,$email_subject,$email_body,$headers);
      //redirect to the 'thank you' page
      header('Location: thank_you.html');
  } 
  
  echo nl2br($errors);
  ?&gt;
  </code></pre>
  
  <p>There are no spaces!
  Im hosting my website with Hostgator</p>