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 }