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我一直在嘗試通過使用HTML表單來更新我的表中的記錄。我能夠成功創建和刪除記錄，但我無法更新它。我不確定我做錯了什麼。它可能是SQL查詢語法嗎？或者是我的保存按鈕不調用我的條件聲明？我將不勝感激任何建議。更新SQL表形成
ps。我知道我的SQL數據庫對SQL注入是開放的。它將很快實施！
<?php
include('partregister2.php');
$epr='';
$msg='';
if(isset($_GET['epr']))
$epr=$_GET['epr'];
//+++++++++++++++ UPDATE PARTICIPANTS RECORD +++++++++++++++++
if($epr=='saveup'){
$Name=$_POST['name'];
$Surname=$_POST['surname'];
$Date_of_Birth=$_POST['dob'];
$Age_at_Camp=$_POST['age'];
$Branch=$_POST['branch'];
$Gender=$_POST['gender'];
$Address=$_POST['address'];
$Contact_No=$_POST['contactNo'];
$Next_of_Kin=$_POST['nextKin'];
$Kin_ContactNo=$_POST['kinContact'];
$Attendance_Camp=$_POST['attendCamp'];
$Attendance_School=$_POST['attendSchool'];
$Comments=$_POST['comments'];
$event_name_FK=$_POST['Event_Name'];
$Room_Name_FK=$_POST['Room_Name'];
$a_sql = mysql_query("UPDATE participants SET Name='$Name',Surname='$Surname',Date_of_Birth ='$Date_of_Birth',Age_at_Camp ='$Age_at_Camp',Branch ='$Branch',Gender ='$Gender',Address ='$Address',
Contact_No ='$Contact_No',Next_of_Kin ='$Next_of_Kin',Kin_ContactNo = '$Kin_ContactNo',Attendance_Camp ='$Attendance_Camp',Attendance_School ='$Attendance_School',Comments ='$Comments',event_name_FK ='$event_name_FK',Room_Name_FK ='$Room_Name_FK' WHERE partID='$id'");
if(a_sql)
header("location:index.php");
else
$msg='Error : '.mysql_error();
}
?>
<html>
<head>
</head>
<body>
<?php
if($epr=='update'){
$id=$_GET['id'];
$row=mysql_query("SELECT * FROM participants WHERE partID='$id'");
$st_row=mysql_fetch_array($row);
?>
<h2 align="center">Update Participant Records</h2>
<form method="POST" action='index.php?epr=saveup'>
<table align="center">
<tr>
<td>First Name:</td>
<td><input type='text' name ='name' value="<?PHP echo $st_row['Name'] ?>"/></td>
</tr>
<tr>
<td>Surname:</td>
<td><input type='text' name ='surname' value="<?PHP echo $st_row['Surname'] ?>"/></td>
</tr>
<tr>
<td>Date of Birth:</td>
<td><input type='date' name ='dob' value="<?PHP echo $st_row['Date_of_Birth'] ?>"/></td>
</tr>
<tr>
<td>Age at Camp:</td>
<td><input type='text' name ='age' value="<?PHP echo $st_row['Age_at_Camp'] ?>"/></td>
</tr>
<tr>
<td>Branch:</td>
<td><select name='branch' value="<?PHP echo $st_row['Branch'] ?>"/>
<option></option>
<option>Brixton</option>
<option>North London</option>
<option>East London</option>
<option>Southall</option>
<option>Leicester</option>
<option>Newport</option>
<option>Liverpool</option></td>
</tr>
</select>
<tr>
<td>Gender:</td>
<td>Male<input type="radio" value="male" name="gender" value="<?PHP echo $st_row['Gender'] ?>"/>
Female<input type="radio" value="female" name="gender" value="<?PHP echo $st_row['Gender'] ?>" /><td/>
</tr>
<tr>
<td>Address:</td>
<td><input type='text' name ='address' value="<?PHP echo $st_row['Address'] ?>"/></td>
</tr>
<tr>
<td>Contact No:</td>
<td><input type='text' name ='contactNo' value="<?PHP echo $st_row['Contact_No'] ?>"/></td>
</tr>
<tr>
<td>Next of Kin:</td>
<td><input type='text' name ='nextKin' value="<?PHP echo $st_row['Next_of_Kin'] ?>"/></td>
</tr>
<tr>
<td>Kin's Contact No:</td>
<td><input type='text' name ='kinContact' value="<?PHP echo $st_row['Kin_ContactNo'] ?>"/></td>
</tr>
<tr>
<td>Attendance at Camp:</td>
<td><input type='text' name ='attendCamp' value="<?PHP echo $st_row['Attendance_Camp'] ?>"/></td>
</tr>
<tr>
<td>Attendance at Sunday School:</td>
<td><input type='text' name ='attendSchool' value="<?PHP echo $st_row['Attendance_School'] ?>"/></td>
</tr>
<tr>
<td>Comments:</td>
<td><input type='text' name ='comments' value="<?PHP echo $st_row['Comments'] ?>"/></td>
</tr>
<tr>
<td>Event Name:</td>
<td><select name='Event_Name' value="<?PHP echo $st_row['event_name_FK'] ?>">
<?php
$res = mysql_query("SELECT * FROM events");
while($row=mysql_fetch_array($res))
{
?>
<option>
<?php echo $row["Event_Name"]; ?>
</option>
<?php } ?>
</tr>
</select>
<tr>
<td>Allocate Room:</td>
<td><select name='Room_Name' value="<?PHP echo $st_row['Room_Name_FK'] ?>">
<?php
$res = mysql_query("SELECT * FROM rooms");
while($row=mysql_fetch_array($res))
{
?>
<option>
<?php echo $row["Room_Name"]; ?>
</option>
<?php } ?>
</td>
</select>
</tr>
<td></td>
<tr>
<td></td>
<td><input type ='submit' name='save'/></td>
</tr>
</table>
</form>
<?php } else{
?>
</body>
</html>
嗨德克特，我在哪裏缺少$？ –