title: Regular Expression in preg_split
body: <p>I dont know what Im doing wrong with this expression:</p>
  
  <pre><code>'/^(first part.{1}second part)$/'
  </code></pre>
  
  <p>I would like to split my file by string like this:</p>
  
  <p>"first partZsecond part"</p>
  
  <p>"first partwsecond part"</p>
  
  <p>"first partUsecond part"</p>
  
  <p>and so on.
  Thankyou for your help</p>