当我点击提交时，我应该如何更改代码以便一次更新多行？
这是代码:
<html>
<title></title>
<head>
</head>
<body>
<form action="" method="post">
<table>
<tr>
<td><h6>Seatwork 1</h6></td>
<td><h6>Seatwork 2</h6></td>
<td><h6>Seatwork 3</h6></td>
<td><h6>Quiz 1</h6></td>
<td><h6>Quiz 2</h6></td>
</tr>
<?php
$query1="SELECT * FROM tbl...";
$query = mysql_query($query1) or die(mysql_error());
while($user = mysql_fetch_assoc($query)){
$userid = $user['userid'];
$first = $user['first_name'];
$last = $user['last_name'];
$subject = $user['subject'];
$sw1 = $user['sw1'];
$sw2 = $user['sw2'];
$sw3 = $user['sw3'];
$qz1 = $user['qz1'];
$qz2= $user['qz2'];
?>
<tr>
<td><h6><?php echo $first; ?> <?php echo $last; ?></h6></td>
<!-- Written Works -->
<td><input type="text" name="sw1" value="<?php echo $ws1; ?>"></td>
<td><input type="text" name="sw2" value="<?php echo $ws2; ?>"></td>
<td><input type="text" name="sw3" value="<?php echo $ws3; ?>"></td>
<td><input type="text" name="qz1" value="<?php echo $ws4; ?>"></td>
<td><input type="text" name="qz2" value="<?php echo $ws5; ?>"></td>
</tr>
<?php } ?>
</table>
<input type="submit" name="submit" value="submit">
</form>
保存行的查询:
它保存但仅当一行中的列的值相同时。 请帮我解决这个问题。提前致谢。
<?php
if ($_POST["submit"]) {
$sw1 = $_POST['sw1'];
$sw2 = $_POST['sw2'];
$sw3 = $_POST['sw3'];
$qz1 = $_POST['qz1'];
$qz2 = $_POST['qz2'];
$WST = $sw1 + $sw2 + $sw3 + $qz1 + $qz2;
$WSP1 = ($WST / 150 )*100;
$WSP = number_format((float)$WSP1, 2, '.', '');
$sql="UPDATE tbl_quarter1 set sw1 = '$sw1' , sw2 = '$sw2',
sw3 = '$sw3', qz1 = '$qz1', qz2 = '$qz2',
WST='$WST', WSP='$WSP'";
mysql_query($sql) or die(mysql_error());
}
?>
</body>
</html>
最佳答案
在表单中，您需要传递firstname 和lastname
<input type="hidden" name="first_name" value="<?php echo $first; ?>" />
<input type="hidden" name="last_name" value="<?php echo $last; ?>" />
并且在处理脚本中，您可以更新关于firstname 和lastname
$first_name = $_POST['first_name'];
$last_name = $_POST['last_name'];
$sql="UPDATE tbl_quarter1 set sw1 = '$sw1' , sw2 = '$sw2',
sw3 = '$sw3', qz1 = '$qz1', qz2 = '$qz2', WST='$WST',
WSP='$WSP' WHERE first_name = '$first_name' AND
last_name = '$last_name' ";
关于php - 如何通过计算在一个查询中更新数据库中的多行，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/35114835/