(1) 您的if(isset($_POST['insert'])){ 缺少右括号}
if(isset($_POST['insert'])){
$artist = $_POST['artist'];
$place = $_POST['place'];
$hour = $_POST['hour'];
$minute = $_POST['min'];
$year = $_POST['year'];
$month = $_POST['month'];
$day = $_POST['day'];
$price = $_POST['price'];
$open = $_POST['open'];
$time = $hour.':'.$minute;
$date = $year.'-'.$month.'-'.$day;
$result=mysqli_query($con,"insert into Concert values('$id','$artist','$date','$time','$place','$price','$open')");
if($result)
{
echo 'Values updated successfully';
}
?>
应该是
if(isset($_POST['insert'])){
$artist = $_POST['artist'];
$place = $_POST['place'];
$hour = $_POST['hour'];
$minute = $_POST['min'];
$year = $_POST['year'];
$month = $_POST['month'];
$day = $_POST['day'];
$price = $_POST['price'];
$open = $_POST['open'];
$time = $hour.':'.$minute;
$date = $year.'-'.$month.'-'.$day;
$result=mysqli_query($con,"insert into Concert values('$id','$artist','$date','$time','$place','$price','$open')");
if($result)
{
echo 'Values updated successfully';
}
} // MISSING THIS CLOSING BRACKET
?>
(2) 在第 73 行,您拼错了您的选择结束标签
</selct>
应该是
</select>
(3) 另外,我假设
$results=mysqli_query($con, "select * from Users where `userName` ='$username'");
$id = 'id_cust';
应该是这样的
$results=mysqli_query($con, "select * from Users where `userName` ='$username'");
$row = mysqli_fetch_array($result);
$id = $row['id_cust'];