1. public function numberFilter($number)
    2.     {
    3.         if ($number <= 1000) {
    4.             return $number;
    5.         }
    7.         $currentValue = $currentUnit = null;
    8.         $unitExps     = array('千' => 3, '万' => 4, '亿' => 8);
    10.         foreach ($unitExps as $unit => $exp) {
    11.             $divisor      = pow(10, $exp);
    12.             $currentUnit  = $unit;
    13.             $currentValue = $number / $divisor;
    15.             if ($currentValue < 10) {
    16.                 break;
    17.             }
    18.         }
    20.         return sprintf('%.0f', $currentValue).$currentUnit;
    21.     }