0
回答
php库存进销，并更新余量
表单提交的数据和数据库取的数据进行运算
把提交的数据记录入数据表并且把计算结果更新到运算中从数据库内读取的那个值的位置
但现在的情况是要么执行记录表单提交的数据
要么更新库存余量
修改了好多都无法既记录数据又更新余量
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>进销存录入</title>
<link href="css/style.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top">
<div id="tlogo"> <img src="images/vptlogo.png" /></div>
<div id="ttitle">进销存</div>
</div>
<div style="height:20px;"></div>
<div id="pbgx" style="text-align:center">
<?php echo "你好，你录入的信息已经更新，请继续修订该产品或更新其他产品"; ?>
<?php
$con = mysql_connect("localhost","root","root");
mysql_query("set character set 'utf8'");//读库
mysql_query("set names 'utf8'");//写库
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db("vptdatebase", $con);
$sql ="SELECT `finnumb` FROM `rl` WHERE `bt_kind` = '$_POST[rl]' LIMIT 0 , 30 ";
$result = mysql_query($sql);
$sql ="INSERT INTO pss (time, sales, rl,numb,io,pinumb)
VALUES
(NOW(),'$_POST[sales]','$_POST[rl]','$_POST[numb]','$_POST[io]','$_POST[pinumb]')commit";
$sql ="UPDATE `vptdatebase`.`rl` SET `finnumb` = finnumb+$_POST[numb] WHERE `rl`.`bt_kind` = '$_POST[rl]'";
if (!mysql_query($sql,$con))
{
die('Error: ' . mysql_error());
}
while($row = mysql_fetch_array($result)){
$nnn=$row['finnumb']+"$_POST[numb]";
echo $nnn;
}
mysql_close($con)
?>
</div>
<?php include"footer.php" ?>
</body>
</html>
PHP
MySQL