PHP折扣,php 团购折扣计算公式

php 团购折扣计算公式，因为最近需要调用天天团购程序的数据，代码比较不好找，所以直接自己写个代码读取mysql的数据。

$price=$row['price']; //原价

$nowprice=$row['nowprice']; //现价

$jiesheng=$price-$nowprice; //节省金额

//$discount折扣计算

if ( $nowprice > 0 )

{

$discount = round(10 / ($price / $nowprice), 1);

}

else

{

$discount = 0;

}

if ( $discount <= 0 ) $discount = 0;

完整代码:

body{margin: 0 auto; text-align:center; padding:0}

ul,li{margin:0; padding:0;list-style:none}

body,td,th {

font-size: 12px;

}

a:link {

color: #333333;

text-decoration: none;

}

a:visited {

text-decoration: none;

color: #333333;

}

a:hover {

text-decoration: none;

color: #FF3300;

}

a:active {

text-decoration: none;

}

img{border:0;}

/*Group buy*/

.groupbuy{ width:970px; border:1px solid #FEDDBA; padding:4px;}

.groupbuy ul{width:146px; border:1px solid #FEDDBA; padding:2px; height:180px; float:left; margin:0 4px;}

.groupbuy ul li{ text-align:center;}

.groupbuy ul li.realprice{ background:#333; background:url(../images/groupprice.jpg) no-repeat right top; height:40px; line-height:40px; font-family:"Microsoft YaHei",Arial;display:block; font-weight:bold;color:#fff;}

.groupbuy ul li.realprice img{ cursor:pointer;}

.groupbuy ul li.realprice span{float:left; margin:0; padding:0}

.groupbuy ul li.realprice span b{ font-size:18px;}

.groupbuy ul li.supprice{ text-align:center;}

.groupbuy ul li.supprice div table td{ background:#FDF4E3; text-align:center; }

error_reporting(0);

header("Content-type: text/html; charset=gbk");

$con = mysql_connect("localhost","mysql用户名","mysql密码");

if (!$con)

{

die('Could not connect: ' . mysql_error());

}

// some code

mysql_select_db("tuanpcqc");

mysql_query("set names gbk");

$sql="select * from cenwor_tttuangou_product order by id desc limit 0,3";

$result = mysql_query($sql);

?>

function getpic($pic){

}

mysql_close($con);

?>