好的，所以这是我的uni项目开发方面的最后一个障碍，很快就会到期，我需要在一分钟内从学校接我的女儿（所以我为任何延迟回应道歉 - 我保证你我还没有消失。）
好的，我正在向从数据库中检索到的用户显示不同的时间（预订位置）。然后，用户可以选择与他们希望预订的时隙相关的单选按钮。我添加了一个计数器，以便每个单选按钮都有一个唯一的ID。点击“预约”按钮后，startTime值和slotId值需要插入bookings表格，以及bookingId中的availability来自userId表的表格和users，基于当前的SESSION。
我的问题是，由于单选按钮具有不同的值，我不确定如何定义选择了哪个单选按钮，因此如何编写查询以插入与每个唯一单选按钮相关的数据。
我知道那里会有一个if语句，我只是不确定如何接近它，我已经花了很多时间考虑这个，我已经没时间了，狗让我疯了，我的女儿意味着时间非常有限，所以我真的很感激提供的任何帮助或指导：）
bookings.php `
}
?>
<!--Display available slots based on chosen date-->
<?php
if(isset($_POST['getDate'])){
$datepicker = strip_tags($_POST['datepicker']);
$datepicker = $DBcon->real_escape_string($datepicker);
$sql=("SELECT slotId, startTime, endTime, date FROM availability
WHERE date= '".$datepicker."'");
$query_s=mysqli_query($DBcon, $sql);
$row=mysqli_fetch_array($query_s);
if (!$row) {echo 'Error, No bookings available for this date,
please choose another';}
$counter = 1;
while ($row=mysqli_fetch_array($query_s)){
$id = 'slot_id'.$counter;
$counter++;
//echo '<div class="col-lg-3 col-md-3 col-sm-4 col-xs-6">';
?>
<table class="table-responsive">
<form class="form-bookings" method="post" action="<?php echo
htmlspecialchars($_SERVER['PHP_SELF']); ?>" autocomplete="off">
<tbody>
<tr>
<td><?php echo $row['startTime'] ?></td>
<td><?php echo $row ['endTime'] ?></td>
<td><input type="radio" name="<?php echo ['slotId']?
>" id="<?php $id ?>" Value="<?php echo ['startTime']?>"></td>
<td><?php echo $id ?></td>
</tr>
</tbody>
<?php
}
}
?>
</form>
</table>
</div>
</div>
</div>`
Bookings Table columns are:
`bookingId
slotId
userId
startTime`
答案 0 :(得分：1)
<?php
/*
* Some general recommendations:
*
* - Always provide semicolons (;) in PHP codes.
* - Maintain lowercase for the HTML attributes.
* - Start/end HTML tags on the same page scope. Same for PHP codes.
* - Don't write text direct in body. Wrap it in span, div, label, etc, first.
* - The HTML tags should also have a coressponding end/close tag.
* Only the ones that requires it (div, span, etc).
* Breaks, inputs, etc don't require this
* - Always validate $_GET, $_POST, $_SESSION, etc, values
* and assign defaults if not valid.
* - Use camelCase when naming PHP variables.
* - Preserve table structure definition. Inject HTML tags only where they belong.
* When using forms (<form>) with tables (<table>), insert them just in TD's (<td>),
* not anywhere else. Or wrap the whole table in a form.
*/
// Code for session starting and includes...
?>
<!DOCTYPE HTML>
<html>
<head>
<title>App/page title</title>
</head>
<body>
<?php
try {
//-------------------------------------------------------
// Read the user ID from session.
//-------------------------------------------------------
$userId = isset($_SESSION['userId']) ? $_SESSION['userId'] : NULL;
/*
* -----------------------------------
* Upon submission by book app button.
* -----------------------------------
*/
$bookApp = isset($_POST['bookApp']) ? $_POST['bookApp'] : NULL;
if (isset($bookApp)) {
$bookingMessages = '';
// Get posted availabilityId.
$receivedAvailabilityId = isset($_POST['availability']) ? $_POST['availability'] : NULL;
// Insert availability_id & user_id into bookings
if (isset($receivedAvailabilityId)) {
/*
* -------------------------------------------
* Insert the booking information into the DB.
* -------------------------------------------
*/
$sqlBookAvailability = "INSERT INTO bookings (availability_id, user_id) VALUES (" . $receivedAvailabilityId . ", " . $userId . ")";
$isAvailabilityBooked = mysqli_query($DBcon, $sqlBookAvailability);
if (!$isAvailabilityBooked) {
throw new Exception('The selected availability could not be booked.');
}
// Get last inserted booking ID upon booking.
$lastInsertedBookingId = mysqli_insert_id($DBcon);
if ($lastInsertedBookingId == 0) {
throw new Exception('The selected availability could not be booked.');
}
$bookingMessages .= "The selected availability were successfully booked. Booking ID: " . $lastInsertedBookingId . ".";
$bookingMessages .= "<br/>";
} else {
$bookingMessages .= "Please choose an availability.";
$bookingMessages .= "<br/>";
}
echo $bookingMessages;
}
/*
* ----------------------------------------
* Upon selection of a date in date picker.
* ----------------------------------------
*/
// Read selected date from date picker.
$getDate = isset($_POST['getDate']) ? $_POST['getDate'] : NULL;
if (isset($getDate)) {
$postDatePicker = isset($_POST['datepicker']) ? $_POST['datepicker'] : NULL;
$strippedDatePicker = strip_tags($postDatePicker);
$datePicker = mysqli_real_escape_string($DBcon, $strippedDatePicker);
/*
* ---------------------------------
* Display available availabilities.
* ---------------------------------
*/
$sqlBookedAvailabilities = "SELECT av.id, av.start_time, av.end_time, av.date
FROM availabilities as av
LEFT JOIN bookings AS bo ON bo.availability_id = av.id
WHERE bo.id IS NULL AND av.date = '" . $datePicker . "'";
$queryBookedAvailabilities = mysqli_query($DBcon, $sqlBookedAvailabilities);
if (!$queryBookedAvailabilities || mysqli_num_rows($queryBookedAvailabilities) == 0) {
echo 'No bookings available for this date, please choose another.';
echo '<br/>';
} else {
?>
<form id="chooseAvailabilities" class="form-bookings" action="<?php echo htmlspecialchars($_SERVER['PHP_SELF']); ?>" method="post" autocomplete="off">
<table class="table-responsive">
<tbody>
<?php
// Read availabilities list.
while ($rowAvailability = mysqli_fetch_array($queryBookedAvailabilities)) {
$availabilityId = $rowAvailability['id'];
$availabilityStartTime = $rowAvailability['start_time'];
$availabilityEndTime = $rowAvailability ['end_time'];
?>
<tr>
<td>
<?php echo $availabilityStartTime; ?>
</td>
<td>
<?php echo $availabilityEndTime; ?>
</td>
<td>
<input type="radio" name="availability" id="availability_id<?php echo $availabilityId; ?>" value="<?php echo $availabilityId; ?>">
</td>
<td>
</td>
</tr>
<?php
} // End reading availabilities list.
?>
<tr class="book-appointment-outer-wrapper">
<td colspan="4" class="book-appointment-inner-wrapper">
<button type="submit" class="btn btn-default" name="bookApp">
Book Appointment
</button>
</td>
</tr>
</tbody>
</table>
</form>
<?php
}
} // End reading date from date picker.
$closed = mysqli_close($DBcon);
if (!$closed) {
echo 'The database connection can not be closed!';
}
} catch (Exception $exception) {
echo $exception->getMessage();
exit();
}
?>
</body>
</html>