【发布时间】：2016-05-07 00:03:09
【问题描述】：
我正在为学校做项目，现在被困在这个问题上，我希望有人在这里为我指出正确的方向。
我正在设计一个使用 Web Front 和 MySQL 数据库的预订系统。我有几张桌子：顾客、座位、价格、预订和筛选。我正在尝试使用那里的主键将数据从其他表插入到预订表中。但是我不断收到以下错误消息： Incorrect integer value: '' for column 'customerid' at row 1 我到处搜索，但似乎没有得到任何解决方案。我在下面复制了我的代码。
<?php
$customerid=$_POST['customerid'];
$screeningid=$_POST['screeningid'];
$seatid=$_POST['seatid'];
$priceid=$_POST['priceid'];
$status=$_POST['status'];
$query = "INSERT INTO `booking`(bookingid, customerid, screeningid, seatid, priceid, bookingdate, status)
VALUES(NULL, '". mysql_real_escape_string($customerid)."', '". mysql_real_escape_string($screeningid)."', '". mysql_real_escape_string($seatid)."','". mysql_real_escape_string($priceid)."', 'DateTime()', '". mysql_real_escape_string($status)."')";
$result=mysql_query($query) or die (mysql_error());
// if successfully insert data into database, displays message "Successful".
if($result)
{
echo "<p>success</p>";
echo "<BR>";
}
else
{
echo mysql_error();
}
?>
这是我的表格：
<div id="content">
<h2>Enter Booking Details Below</h2>
<form name="reg_form" action="bookingecho.php?action=add type=booking" onsubmit="return validate_reg()" method="POST" >
<table>
<tr>
<td>Customer</td>
<td> <select name="customerid">
<?php
//Perform database query
$query = ("SELECT * FROM customers
ORDER BY customerid DESC");
$result = mysql_query($query, $connection) or die (mysql_error());
// populate the select options with the results
while ($row = mysql_fetch_assoc($result))
{
//extract column
$customerid = $row['customerid'];
$fname = $row['fname'];
$lname = $row['lname'];
$telephone = $row['telephone'];
//use
echo "<option value>$customerid $fname $lname $telephone</option>";
}
?>
</select></td></tr>
<tr>
<td>Screening</td>
<td> <select name="screeningid">
<?php
//Perform database query
$query = ("SELECT * FROM screening");
$result = mysql_query($query, $connection) or die (mysql_error());
// populate the select options with the results
while ($row = mysql_fetch_assoc($result))
{
//extract column
$screeningid = $row['screeningid'];
$day = $row['day'];
$screeningdate = $row['screeningdate'];
$filmtitle = $row['filmtitle'];
//use
echo "<option value>$screeningid $day $screeningdate $filmtitle</option>";
}
?>
</select></td></tr>
<tr>
<td>Seat</td>
<td> <select name="seatid">
<?php
//Perform database query
$query = ("SELECT seats.seatid, seats.seatnumber, seats.seatclass
FROM seats
WHERE seatid
NOT IN (SELECT seatid FROM booking
WHERE screeningid = '$screeningid')
ORDER BY `Seats`.`seatid` ASC");
$result = mysql_query($query, $connection) or die (mysql_error());
// populate the select options with the results
while ($row = mysql_fetch_assoc($result))
{
//extract column
$seatid = $row['seatid'];
$seatnumber = $row['seatnumber'];
$seatclass = $row['seatclass'];
//use
echo "<option value>$seatid $seatnumber $seatclass</option>";
}
?>
</select></td></tr>
<tr>
<td>Concession</td>
<td> <select name="priceid">
<?php
//Perform database query
$query = ("SELECT * FROM price");
$result = mysql_query($query, $connection) or die (mysql_error());
// populate the select options with the results
while ($row = mysql_fetch_assoc($result))
{
//extract column
$priceid = $row['priceid'];
$concession = $row['concession'];
$cost = $row['cost'];
//use
echo "<option value>$priceid $concession $cost</option>";
}
?>
</select></td></tr>
<tr>
<td>Status</td>
<td>
<input type= radio name="status" value="Booked"> Booked
<input type= radio name="status" value="Reserved"> Reserved
</td>
</tr>
</select></td></tr>
</table>
<p align="center">
<td><input type="submit" name="submit" id= "submit" value="Add"/></td>
<input type="reset" value="Reset Form">
</p>
</form>
</div>
【问题讨论】：
-
那么
customerid是什么数据类型？$_POST['customerid']的值是多少？ -
customerid 是整数
-
和
$_POST['customerid']的值的值？