php团购折扣计算公式_PHP教程

$price=$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:
 代码如下:
 
 
 
 
 
 
 
 
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); 
?> 
 
while($row = mysql_fetch_array($result, MYSQL_BOTH)) { 
$id=$row['id']; 
$name = $row['name']; 
$price = $row['price']; 
$price=$row['price']; 
$nowprice=$row['nowprice']; 
$jiesheng=$price-$nowprice; 

if ( $nowprice > 0 ) 
{ 
$discount = round(10 / ($price / $nowprice), 1); 
} 
else 
{ 
$discount = 0; 
} 
if ( $discount <= 0 ) $discount = 0; 

$pic=$row['img']; 
$pic_arr=split(",",$pic); 
$picadd=$pic_arr[0]; 
//echo $picadd; 
$sql2="select * from cenwor_tttuangou_uploads where id=".intval($picadd); 
$result2 = mysql_query($sql2); 
$picurl = mysql_result($result2, 0,"url"); 
$picurl=str_replace("/demo/","/thumb/200x121/demo/",$picurl); 
?> 
 
" target="_blank">
 
￥" target="_blank">
 
 
 











 
 
原价
 
折扣
 
节省
 
 
 
 
折
 
￥
 
 
 
 
 
 
} 
?> 
 
function getpic($pic){ 

} 
mysql_close($con); 
?> 
 



http://www.bkjia.com/PHPjc/324539.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/324539.htmlTechArticle 代码如下:
$price=$row['price']; //原价 $nowprice=$row['nowprice']; //现价 $jiesheng=$price-$nowprice; //节省金额 //$discount折扣计算 if ( $nowprice 0 )...