Question

当打开此页面时，它将在下面的文本框中显示记录的内容：

enter image description here

编辑文本后，点击用当前替换上一个音符：

enter image description here

使用ModifyNoteScript.php中的代码

将记录成功存储在数据库中

$comment_update = mssql_query("UPDATE pmp_property__unit
    SET  
    comments = '$NOTE'
    WHERE 
    communityidy='$COMID' and
    unit='$UNIT'") 
             or die ("Changes to Record could not be Saved."); 

    if (!$comment_update)
    {
        $success=2;
    }
    else
    {
        $success=1;
    }


    header ('Location:ModifyNote.php?unit=' . $UNIT . '&COMID=' . $COMID . '&success=' . $success);

header将用户重定向回同一页面并显示以下注释：

enter image description here

我遇到的问题是：

原始笔记在文本框中消失，现在文本框为空白，如上所示
如果我点击replace previous note with current 重新，我会得到与上面#1相同的结果，此外，文本框中的内容是 NOT < / strong>保存到数据库。

这是包含文本框的页面代码（编辑或删除注释）：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Untitled Document</title> <link href="../nav/occupancypop.css" rel="stylesheet" type="text/css"></link> <script type='text/JavaScript' src='../scw.js'></script></head> <script type="text/javascript">  </script> <body> <div id="maincontentform"> <?php include '../Check.php'; $success = $_GET['success']; if($success == 1) { echo '<span class="style4">*The note has been saved!</span><br /> <br />'; } elseif ($success==2) { echo '<span class="style4">*There was an error updating the note!</span><br /> <br />'; } //GET the unit and community id $UNIT = $_GET['unit']; $COMID = $_GET['comid']; include '../KiscoCustomConnect.php'; //Get the commnet $Comment_Query = mssql_query("select top 1 comments from pmp_property__unit where communityidy='$COMID' and unit='$UNIT'"); if (mssql_num_rows($Comment_Query)>0) { $Comment=mssql_result($Comment_Query,0,'comments'); } else { $Comment=''; } ?> <span class="MainTitle"> Edit or Delete the Note</span> <p><br /> <table width="596" border="0" cellspacing="0" cellpadding="0" id="maintable"> <tr class="odd"> <td width="164"><div class="pickform"> <ul> <li> <div align="center"> <p><strong><img src="../media/_space.gif" alt="" width="135" height="1" /><br /> Update Notes</strong><br /> <?php echo 'for unit ' . $UNIT ?> </div> </li> </ul> </div></td> <td width="431"> <form action="ModifyNoteScript.php" method="post" /> <input name="Comment" type="hidden" value="<?php echo $Comment; ?>" /> <input name="UNIT" type="hidden" value="<?php echo $UNIT; ?>" /> <input name="COMID" type="hidden" value="<?php echo $COMID; ?>" /> <textarea name="Comment" cols="55" rows="6" class="text1" id="Comment"><?php echo $Comment; ?></textarea> <br /> <input type="submit" name="sendnotify" class="formbutton" id="Submit" value="Replace previous note with current" /> </form></td> </tr> </table> <blockquote> <p><br /> <?php if($success == 3) { echo '<input type="button" name="Cancel3" class="formbutton2" id="Cancel3" value="Close" onclick="closewindow2();" />'; } else { echo '<input type="button" name="Cancel3" class="formbutton2" id="Cancel3" value="Close" onclick="closewindow();" />'; } ?> <br /> <br /> </p> </blockquote> </div> </body> </html>
我在做错了什么？我怀疑它是header的东西？

Answer 1

从我看到的情况来看，你设置了其他情况

else
{
   $Comment='';
}

你进入其他案件的原因如下：

您使用小写字母访问 $ _ GET ['comid'] ，但是当您将其设置为大写＆amp; COMID = 时。我尝试了以下方法：

$arr['a'] = 'a';
echo $arr['A']; //echoes blank (false)

与你的案子：

$_GET['COMID'] = 'test';
var_dump($_GET['comid']); // results in undefined index comid

所以我会在尝试获取值时将comid更改为大写。

Answer 2

尝试在$ Comment ='Test'中添加一些文本，这样你就可以知道mysqli_num_rows何时返回0行

Answer 3

 $comment_update = mssql_query("UPDATE pmp_property__unit
    SET  
    comments = '$NOTE'
    WHERE 
    communityidy=$COMID and
    unit='$UNIT'") 
             or die ("Changes to Record could not be Saved.");

重新打开页面时，内容不会刷新

3 个答案: