1:  $price = '100';

   2:  $time = '22:02';

   3:   

   4:  //金額チェック

   5:  if (preg_match('/^(0|[1-9][0-9]{0,2}(,[0-9]{3}){0,2})$/', $price)) {

   6:      echo 'OK';

   7:  }else{

   8:      echo 'NG';

   9:  }

  10:   

  11:  //時間チェック

  12:  if (preg_match('/^([0-1][0-9]|[2][0-3]):[0-5][0-9]$/', $time)) {

  13:      echo 'OK';

  14:  }else{

  15:      echo 'NG';

  16:  }