PHP truncate string - cut string after certain length - output shorter string.php

PHP truncate string - cut string after certain length - output shorter string.php

<?php 
// http://stackoverflow.com/questions/3161816/php-cut-a-string-after-x-characters

function truncate_string($string,$length=70,$append="...") {
  $string = trim($string);

  if(strlen($string) > $length) {
    $string = wordwrap($string, $length);
    $string = explode("\n",$string);
    $string = array_shift($string) . $append;
  }

  return $string;
}

 ?>

Code written 10 years ago still useful.
Thanks, Ollie.