gistfile1.txt

function slug($string)
{
  $string = strtolower($string);
  $string = str_replace(array('ä','ü','ö'), array('ä', 'ü', 'ö'), $string);
  $string = str_replace(array('ä', 'ü', 'ö'), array('ae', 'ue', 'oe'), $string);
  $string = str_replace('&', '-und-', $string);
  $string = str_replace('/', '-oder-', $string);
  $string = str_replace('@', '-at-', $string);
  $string = str_replace('ß', '-ss-', $string);
  $string = convert_accented_characters($string);
  $string = preg_replace('/[^a-z0-9\-_ ]/', '', $string);
  $string = str_replace(' ', '-', $string);
  // $string = str_replace('--', '-', $string);

  $string = str_replace('c3a4', 'ae', $string);
  $string = str_replace('c3bc', 'ue', $string);
  $string = str_replace('c3b6', 'oe', $string);
  $string = str_replace('c396', 'oe', $string);
  $string = str_replace('2f', '-', $string);

  $string = substr($string, 0, 70);
  
  return $string;
}