我试图从表单中获取输入并删除表格数据,然后显示更新的表格,但我得到一个空白页面,我不知道什么可能是问题,任何帮助将在这里是我的代码:
<html>
<body>
<?php
$mysqli = new mysqli("xxxxx", "xxxxxx", "xxxxx", "xxxxxx");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
//----------------------------------------------------------------------------------//
$name = $_POST['Car_ID'];
if ($stmt = $mysqli->prepare("delete from CARS where name=?")) {
// Bind the variable to the parameter as a string.
$stmt->bind_param("s", $name);
// Execute the statement.
$stmt->execute();
echo "Deleted data successfully\n";
// Close the prepared statement.
$mysqli->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$result = $db->prepare("SELECT id, Doors, TRANSMISSION, Fuel_type, Engine_Size, Total FROM CARS");
$result->execute();
while ($row = $result->fetch(PDO::FETCH_ASSOC)){
$doors=$row["Doors"];
$engine=$row["Engine_Size"];
$total=$row["Total"];
$trans=$row["Transmission"];
}
?>
<table>
<tr>
<td><?php echo $doors; ?></td>
<td><?php echo $engine; ?></td>
<td><?php echo $total; ?></td>
<td><?php echo $trans; ?></td>
</tr>
<?php } ?>
</table>
</body>
</html>
你正在mysqli与PDO 混合
$mysqli->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
而且你正在经过$db(理论上)应该去的地方$mysqli
$result = $db->prepare("SELECT id, Doors, TRANSMISSION, Fuel_type, Engine_Size, Total, DATE_INITIATED, AGE, PARTNO, QTY, DESCRIPTION, LOC FROM CARS");
从理论上讲,它应该是
$result = $mysqli->prepare("SELECT id, Doors, TRANSMISSION, Fuel_type, Engine_Size, Total, DATE_INITIATED, AGE, PARTNO, QTY, DESCRIPTION, LOC FROM CARS");
因为您的数据库连接是:
$mysqli = new mysqli("xxxxx", "xxxxxx", "xxxxx", "xxxxxx");
但是,您的数据库连接应该类似于:
$mysql_hostname = 'xxx';
$mysql_username = 'xxx';
$mysql_password = 'xxx';
$mysql_dbname = 'xxx';
$db = new PDO("mysql:host=$mysql_hostname;dbname=$mysql_dbname", $mysql_username, $mysql_password);
$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
你不能这样做:
$stmt->bind_param("s", $name);
你在使用PDO还记得吗？(或者你呢？)接受你的选择,是它mysqli还是PDO？
你最有可能想做的事情:
// $stmt = $db->prepare("delete from CARS where name=:value");
if ($stmt = $db->prepare("delete from CARS where name=:value")) {
// Bind variables to your statement
$stmt->bindParam(':value', $name);
... }