title: Adding line break in txt file not working
body: <p>I have a php file which adds click track data to a .txt file. Problem is, each time data is added, it's added on the same line, even though I've added the <code>"r\n"</code>:</p>
  
  <pre><code>&lt;?php
      $src = isset($_GET['src']) ? $_GET['src'] : "-";
      $dst = isset($_GET['dst']) ? $_GET['dst'] : "-";
      $f = fopen('clickReport.txt',"a+");
      fwrite ($f, date('Y-m-d H:i'));
      fwrite ($f, " : " + $src + " : " + $dst + "\r\n");
      fclose($f);
  ?&gt;
  </code></pre>
  
  <p>Text file output:</p>
  
  <pre><code>2014-02-05 01:1702014-02-05 01:1702014-02-05 01:1702014-02-05 01:170
  </code></pre>
  
  <p>Of course I would like it to be:</p>
  
  <pre><code>2014-02-05 01:170
  2014-02-05 01:170
  2014-02-05 01:170
  2014-02-05 01:170
  </code></pre>
  
  <p>etc...</p>