title: Break long string into pieces php
body: <p>so I have a string which is around 3800 characters, it's sentences words etc.</p>
  
  <p>Now I'm running the string through something although the limit is 1000, so how could I break the string into 4 pieces each containing a maximum of 1000 characters and not breaking words in half, is there any way to do it?</p>
  
  <p>Thanks</p>