php 格式化金额

 1 /**
 2  * 格式化金额
 3  *
 4  * @param int $money
 5  * @param int $len
 6  * @param string $sign
 7  * @return string
 8  */
 9 function format_money($money, $len=2, $sign=‘￥‘){
10     $negative = $money > 0 ? ‘‘ : ‘-‘;
11     $int_money = intval(abs($money));
12     $len = intval(abs($len));
13     $decimal = ‘‘;//小数
14     if ($len > 0) {
15         $decimal = ‘.‘.substr(sprintf(‘%01.‘.$len.‘f‘, $money),-$len);
16     }
17     $tmp_money = strrev($int_money);
18     $strlen = strlen($tmp_money);
19     for ($i = 3; $i < $strlen; $i += 3) {
20         $format_money .= substr($tmp_money,0,3).‘,‘;
21         $tmp_money = substr($tmp_money,3);
22     }
23     $format_money .= $tmp_money;
24     $format_money = strrev($format_money);
25     return $sign.$negative.$format_money.$decimal;
26 }