title: PHP Split over multiple lines does not work
body: <p>I have a regex given in an xml like</p>
  
  <pre><code>&lt;sectiondelimiter&gt;&lt;![CDATA[/--------------------------------------------------------------------------------\n\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*/]]&gt;&lt;/sectiondelimiter&gt;
  </code></pre>
  
  <p>which I read out with SimpleXML</p>
  
  <pre><code>$data = preg_split($file-&gt;sectiondelimiter, $my_file, null, 1 );
  </code></pre>
  
  <p>If I read in a file with file_get_contents, here is an extract, it does not split and returns an array of size 1.</p>
  
  <pre><code>--------------------------------------------------------------------------------
  ********************************************************************************
  
  -------------------------------------------------------------------------------- ClassicCLI ENABLED:  Yes
  
  --------------------------------------------------------------------------------
  ********************************************************************************
  
  -------------------------------------------------------------------------------- start:  no interval:  60 address: serverkey: keyvalue:
  
  --------------------------------------------------------------------------------
  ********************************************************************************
  
  --------------------------------------------------------------------------------
  </code></pre>
  
  <p>What does happen? If I use <a href="http://regex.larsolavtorvik.com/" rel="nofollow">a regex tool</a>, it splits nice as expected.</p>
  
  <p><strong>Edit:</strong> Here's the raw regex:</p>
  
  <pre><code>/--------------------------------------------------------------------------------.\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*/s
  </code></pre>