title: how can i add a line break in XML
body: <p>hi i am working with linkiedin api , there i have a xml </p>
  
  <pre><code>function send_messeges($access_token, $xml_atring) {
  
      $profile_url = "http://api.linkedin.com/v1/people/~/mailbox";
      $xml = '&lt;?xml version="1.0" encoding="UTF-8" ?&gt;
          &lt;mailbox-item&gt;
            &lt;recipients&gt;                
              ' . $xml_atring . '
            &lt;/recipients&gt;
            &lt;subject&gt;'.$this-&gt;send_subject.'&lt;/subject&gt;
            &lt;body&gt;'.$this-&gt;send_message.'&lt;/body&gt;
          &lt;/mailbox-item&gt;';
      $request = OAuthRequest::from_consumer_and_token($this-&gt;consumer, $access_token, "POST", $profile_url);
      $request-&gt;sign_request($this-&gt;method, $this-&gt;consumer, $access_token);
      $auth_header = $request-&gt;to_header("https://api.linkedin.com");
      $response = $this-&gt;httpRequest($profile_url, $auth_header, "POST", $xml);        
      return $response;
  
  }
  </code></pre>
  
  <p>in </p>
  
  <pre><code>$this-&gt;send_message
  </code></pre>
  
  <p>i have a message , i want to  add some HTML with message , but linkedin API does not allow me to do that .</p>
  
  <p>even the </p>
  
  <pre><code>&lt;![CDATA[
          Line 1 &lt;br /&gt;
          Line 2 &lt;br /&gt;
          Line 3 &lt;br /&gt;
          ]]&gt;
  </code></pre>
  
  <p>is not working here , <code>so is there any built in xml tag i can use for line breaks ansd is there any tags equalant to HTML tags</code> . please help</p>
  
  <p><strong>UPDATE</strong>  </p>
  
  <p>if i use message</p>
  
  <pre><code>"Elephanti &lt;br/&gt; invitation Message, Visite our site http://elephanti.com";
  </code></pre>
  
  <p>the response is </p>
  
  <pre><code>Invalid xml {Element not allowed: br@http://api.linkedin.com/v1 in element body@http://api.linkedin.com/v1}
  </code></pre>