我想从HTML表单中获取用户值到数组,然后将其插入到mysql数据库中。它将正确的值插入数据库,然后它会发出以下错误:
注意:未定义的索引:第153行的C:\ wamp \ www \ Capturing System \ All_Topics_widget.php中的TopicNum
以下内容位于页面顶部:
<?php
include 'scripts/functions/init.php';
Restrict();
&GT?;
$userid = $_SESSION['userid'];
$KM_Number = $_SESSION['C_KM'];
$query = "SELECT * FROM knowledge_modules where km_number = "."'".$KM_Number."'";
$Knowledge = mysql_query($query) or die(mysql_error);
$row = mysql_fetch_assoc($Knowledge);
$Module_type = 'Knowledge Modules';
$Purpose_M = $_SESSION['Purpose_KM'];
$KM = 'KM';
$NUM = $_SESSION['KM'];
$KT = 'KT';
if (empty($_POST)=== false)
{
$R_fields = array('Topic_Num','Title','Weight');
foreach($_POST as $key=>$value)
{
if (empty($value) && in_array($key,$R_fields)=== true)
{
$errors[] = 'fields marked with (*) are required';
break 1;
}
}
if(empty($errors)=== true)
{
if(topic_exists($_POST['TopicNum']))
{
$errors[] = 'Sorry, the Topic already exist!';
}
}
}
&GT?; 以下代码位于HTML标记内:
<h2>Tools - </h2>
<form action="All_Topics_widget.php" method="POST" enctype="multipart/form-data">
<fieldset>
<table border="0">
<tr>
<td><label for="TopicNum">Topic Number:* <?php echo $KM.'-'.$NUM.'-'.$KT ?></label></td>
<td><input type="text" size="5" name="TopicNum" /></td>
</tr>
<tr>
<td><label for="Title">Title:*</label></td>
<td><input type="Text" size="35" name="Title"/></td>
</tr>
<tr>
<td><label for="Weight">Weight:*</label></td>
<td><input type="text" size="05" name="Weight" /></td>
</tr>
</table>
</fieldset>
<fieldset>
<table border="0">
<tr>
<td><input id="Submit" type="submit" value="Capture" /></td>
<td><input id="Reset1" type="reset" value="reset" /></td>
<td><a href="list_topics.php">Capture Topics</a></td>
</tr>
</table>
</fieldset>
<?php
$Topics = $KM.'-'.$NUM.'-'.$KT.$_POST['TopicNum'];//This is line 153
if(isset($_GET['success']) && empty($_GET['success']))
{
echo 'Succefully Captured';
}
else
{
if(empty($_POST) == false && empty($errors)== true)
{
//Capture data from the fields to an array
$capture_topic = array(
'TopicNum' => $Topics,
'Title'=>$_POST['Title'],
'Weight'=>$_POST['Weight'],
'Purpose_M'=>$Purpose_M,
'userid'=>$userid);
//Submit the data into the database
capture_topic($capture_topic);
//redirect to the Modules widget page till the user press NEXT Page
header('Location: All_Topics_widget.php?success');
exit();
}
else if(empty($errors)== false)
{
//Display errors
echo output($errors);
}
}
?>
</form>
答案 0 :(得分:1)
看看这个
header('Location: All_Topics_widget.php?success');
exit();
成功处理POST数据后,将脚本重定向到自身。此重定向后,POST数据不存在。
重写
$Topics = $KM.'-'.$NUM.'-'.$KT.$_POST['TopicNum'];//This is line 153
if(isset($_GET['success']) && empty($_GET['success']))
{
echo 'Succefully Captured';
}
else
{
if(empty($_POST) == false && empty($errors)== true)
as
if(isset($_GET['success']) && empty($_GET['success']))
{
echo 'Succefully Captured';
}
else
{
$Topics = $KM.'-'.$NUM.'-'.$KT.$_POST['TopicNum'];
if(empty($_POST) == false && empty($errors)== true)
取消通知。
请注意必填字段数组中的内容
$R_fields = array('Topic_Num','Title','Weight');
您希望看到一个名为Topic_Num的文件,但在您的表单中,它的名称是TopicNum
答案 1 :(得分:1)
此Notice
正在显示,因为您在第153行引用了$_POST['TopicNum']
,此时此$_POST[]
变量已不再设置。
尝试在if(empty($_POST) == false && empty($errors)== true) {}
if(empty($_POST) == false && empty($errors)== true)
{
$Topics = $KM.'-'.$NUM.'-'.$KT.$_POST['TopicNum'];//This is line 153
...
}
这就是导致Notice
-
1 =&GT;您提交/ POST表单,从而设置$_POST['TopicNum']
并在第153行使用。
2 =&gt;您可以在第172行capture_topic($capture_topic);
上将值输入数据库
3 =&gt;您重定向到174 header('Location: All_Topics_widget.php?success');
上的页面,从而清除$_POST[]
全局变量,因此当在153再次调用它时,它现在是未定义的。通过在if(empty($_POST) == false && empty($errors)== true)
的支票中移动它,只有在表格提交/张贴时才会被引用