如果有重复的话题 - 请原谅我,但我还没有找到解决方案。首先,我有一个php文件(update.php)。该文件包含:
<form action='update.php' method='post'>
<table border='1'>
<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "exchange";
$conn = new mysqli($servername, $username, $password, $dbname);
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
mysqli_set_charset($conn,"utf8");
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "SELECT ID, name, symbol, buy, sell FROM exchangevalues";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
while($row = $result->fetch_assoc()) {
echo "<tr>";
echo "<td><input type='text' name='ID' value='".$row["ID"]."'>";
echo "<td>".$row["name"]."</td>";
echo "<td>Buy: <input type='text' name='buy' value='".$row['buy']."'></td>";
echo "<td>Sell: <input type='text' name='sell' value='".$row['sell']."'></td>";
echo "</tr>";
}
}
$conn->close();
?>
<table>
我的数据库中有14行和5列。如何使用新值更新'click'和'sell'列中的每一行?'click'(isset submit button)?我尝试过ID [],买[],但我遇到循环问题,我无法处理它。我在localhost上运行MySQL,我也知道只有最后一行会在没有运行循环的情况下更新,但仍然...
答案 0 :(得分:0)
我假设您有相应的PHP代码来处理输入,以下是创建表单时HTML需要做的示例:
if ($result->num_rows > 0) {
$i=0;
while($row = $result->fetch_assoc()) {
echo "<tr>";
echo "<td><input type='text' name='ID[" . $i . "]' value='".$row["ID"]."'>";
echo "<td>".$row["name"]."</td>";
echo "</tr>";
}
}
在php端处理输入,你可以这样做:
$id_array = $_REQUEST["ID"];
foreach($id_array as $id){
//do insert with $id
}