我想更新事件并将修改后的细节插入到数据库中 我已经在更新php页面中定义了所有变量，但仍然有以下错误 有没有我想念或错误的事情？
注意：未定义的索引：
中的eventID 第5行的C：\ xampp \ htdocs \ assignment \ updateEventDetail.php
注意：未定义的索引：eventDescription in 第7行的C：\ xampp \ htdocs \ assignment \ updateEventDetail.php
注意：未定义的索引：catID in 第10行的C：\ xampp \ htdocs \ assignment \ updateEventDetail.php SQL错误 ：您的SQL语法有错误;检查手册 对应于您的MariaDB服务器版本，以获得正确的语法 'eventDescription =''venueName ='Laing Art Gallery'location'附近 在第3行
这是我的页面，编辑细节并将数据传递到其他php页面
<?php
include "database_conn.php";
if(isset($_GET['eventID'])){
$id = $_GET["eventID"]; //get event id
}
else {
header ("Refresh : 3; url=admin.php");//redirect to choose title
die ("Please use the Choose Event Title List");
}
//get event id
$id = $_GET["eventID"];//get event id
//select event
$sqlEvent =" SELECT * FROM te_events
INNER JOIN te_venue ON te_events.venueID = te_venue.venueID
INNER JOIN te_category ON te_events.catID = te_category.catID
WHERE te_events.eventID =".$id;
//excute sql statemente
$event = mysqli_query($conn , $sqlEvent) or die (mysqli_error($conn));
$_GET = mysqli_fetch_assoc($event) or die (mysqli_error($conn));
//extract each field$
$id = $_GET ["eventID"];
$title = $_GET ["eventTitle"];
$desc = $_GET ["eventDescription"];
$venueId = $_GET ["venueID"];
$venue = $_GET ["venueName"];
$location = $_GET ["location"];
$categoryId = $_GET ["catID"];
$eStart = $_GET ["eventStartDate"];
$eEnd = $_GET ["eventEndDate"];
$ePrice = $_GET ["eventPrice"];
?>
<!DOCTYPE html>
<html lang="en">
<html>
<head>
<link rel="stylesheet" type="text/css" href="test1.css">
<meta charset = "utf-8">
<title>
</title>
</head>
<body>
<div id="title">
<p><h1>Tyne Events</h1></p>
</div>
<div id="wrapper">
<div id="navbar" >
<ul class="nav">
<li><a href="home.html">Home</a></li>
<li><a href="findoutmore.php">Find out more</a></li>
<li><a href="offer.html">Offer</a></li>
<li><a href="credit.html">Credit</a></li>
<li><a href="restrictedPage.php">Admin</a></li>
<li>
<form class="formright">
<input type="text" placeholder="Search">
<button type="submit">Search</button>
</form>
</li>
</ul>
</div>
<div id= "detailCenter">
<form id="updateEventDetail" method ="get" action ="updateEventDetail.php">
<fieldset>
<legend>Event details</legend>
<div><p>
<label class="field" for="eTitle">Event title</label>
<input type ="text" name ="eventTitle" value="<?=$title?>"/>
</p></div>
<div><p>
<label class="field" for="desc">Description</label>
<textarea style="resize:none" name="desc" rows="10" cols="40"><?=$desc?></textarea>
</p></div>
<div>
<p>
<label class ="field" for="venue">Venue</label>
<?php
$sqlVenue ="SELECT DISTINCT venueName FROM te_venue ORDER BY 1";
//query sqlVenue
$rsVenue = mysqli_query ($conn ,$sqlVenue)
or die ("SQL ERROR :".mysqli_error($conn));
//create select item
echo"<select name=\"venueName\">\n";
//iterate venue record
while ($_GET = mysqli_fetch_assoc($rsVenue)){
//populate select item
$eVenue = $_GET[venueName]; //get each venueName record
if($eVenue==$venueName)
echo "<option value =\"$eVenue\" selected>
$eVenue</option>\n";
else{
echo "<option value =\"$venue\">
$eVenue</option>\n";
}
}
echo"</select>\n";
?>
</p>
</div>
<div><p>
<label class="field" for="location">Location</label>
<?php
$sqlLocation ="SELECT DISTINCT location FROM te_venue ORDER BY 1";
//query sqlLocation
$rsLocation = mysqli_query ($conn ,$sqlLocation)
or die ("SQL ERROR :".mysqli_error($conn));
//create select item
echo"<select name=\"location\">\n";
//iterate venue record
while ($_GET = mysqli_fetch_assoc($rsLocation)){
//populate select item
$eLocation = $_GET[location]; //get each location record
if($eLocation==$location)
echo "<option value =\"$eLocation\" selected>
$eLocation</option>\n";
else{
echo "<option value =\"$location\">
$eLocation</option>\n";
}
}
echo"</select>\n";
?>
</p></div>
<div><p>
<label class="field" for="sDate">Event Start Date</label>
<input name="eventStartDate" type="date" value="<?=$eStart?>"/>
</p></div>
<div><p>
<label class="field" for="eDate">Event End Date</label>
<input name="eventEndDate" type="date" value="<?=$eEnd?>"/>
</p></div>
<div><p>
<label class="field" for="ePrice">Event Price</label>
<input type="text" name="eventPrice" value="<?=$ePrice?>"readonly/>
</p></div>
<div><p>
<input type="submit" id="floatright" value="Update Event"/>
</p></div>
</fieldset>
</form>
</div>
</body>
</html>
<?php
mysqli_close($conn);
?>
这是更新php代码
<?php
include "database_conn.php";
//get all data submited
$id = $_GET ["eventID"];
$title = $_GET ["eventTitle"];
$desc = $_GET ["eventDescription"];
$venue = $_GET ["venueName"];
$location = $_GET ["location"];
$categoryId = $_GET ["catID"];
$eStart = $_GET ["eventStartDate"];
$eEnd = $_GET ["eventEndDate"];
$ePrice = $_GET ["eventPrice"];
$sqlUpdateEvent = " UPDATE te_event SET
eventTitle = '$title'
eventDescription = '$desc'
venueName = '$venue'
location = '$location'
eventStartDate = '$eStart'
eventEndDate = '$eEnd'
eventPrice = '$ePrice'
WHERE eventID = $id";
mysqli_query ($conn , $sqlUpdateEvent)
or die ("SQL ERROR :".mysqli_error($conn));
?>
<!DOCTYPE html>
<html lang="en">
<head>
<title>update mvie comfirmmation</title>
<meta charset="utf-8">
</head>
<body>
<h1>update mvoie detials</h1>
<?php
echo "Title : $title \n";
echo "Description : $desc \n";
echo "Venue : $venueName \n";
echo "Location : $location \n";
echo "Start Date : $eventStartDate \n";
echo "End Date : $eventEndDate \n";
echo "Price : $eventPrice \n";
if(mysqli_affected_rows($conn)>0)
echo "<p> Event update successfully </p>\n";
else
echo "<p> Update Fail</p>\n";
?>
<a href = "admin.php">Choose Event</a>
</body>
</html>
<?php
mysqli_close($conn);
?>