PHP st，nd，rd，th to Number

Posted 2021-05-15

function ordinal($n) {
    $ln = (int) substr($n, -1);
    $sln = (int) substr($n, -2);
    $r = array('st','nd','rd');
    $es = (($sln < 11 || $sln > 19) && $ln > 0 && $ln < 4);
    return $n . ($es ? $r[$ln - 1] : 'th');
  }