Ordinal a Number with PHP (st, nd, rd)

function dna_ordinal($number) {

  // e.g. echo dna_ordinal(92); will print '92nd'

  $ends = array('th','st','nd','rd','th','th','th','th','th','th');
  
  if ((($number % 100) >= 11) && (($number%100) <= 13)) {

    $output = $number . 'th';

  } else {

    $output = $number . $ends[$number % 10];

  }

  return $output;

}