我正在尝试处理表格。如果有错误，用户将被重定向到表单，错误将在此处显示，用户尝试提交的任何内容都会在表单的 tinymce 的 textarea 中回显。这样，用户就不必再次重写所有内容。一切都运行良好，除了用户被重定向后会话变量不会在 tinymce 编辑器中回显。会话变量已设置并具有正确的值。如果我在 tinymce 之外回显会话变量，它会按预期显示。它只是不会出现在文本区域中。我该如何解决？另外，我知道这很容易受到 xss 的影响。我想让用户格式化他们的帖子，所以稍后我将通过 HTML Purifier 运行它。添加新线程.php：<?php session_start(); if($_SERVER['REQUEST_METHOD']==='POST'){ if(isset($_POST['submit'])&&$_POST['submit']==='success'){ if (empty(trim($_POST['thread-title']))) { $_SESSION['forum_titErr'] = "<p class='error text-center'>Error message</p>"; } else { $_SESSION['threadTitle'] = $_POST['thread-title']; } if (empty(trim($_POST['thread-content']))) { $_SESSION['forum_thrContErr'] = "<p class='error text-center'>Error message </p>"; } else { $_SESSION['threadCont'] = $_POST['thread-content']; } if((isset($_SESSION['forum_titErr'])&&!empty($_SESSION['forum_titErr']))|| (isset($_SESSION['forum_thrContErr'])&&!empty($_SESSION['forum_thrContErr']))) { header("Location: newthread.php?submit=error"); } else { //insert into database and redirect to readtopic.php if insert is successful; else redirect to form and show insert is not successful }}else{ header("Location: newthread.php");}}else{ exit('invalid request');}?>表单html：<!DOCTYPE html><html><?php session_start(); ?><head> <!-- title, meta, stylesheet, etc. --> <script type="text/javascript" src="jquery.js"></script> <script src="https://cdn.tiny.cloud/1/no-api-key/tinymce/5/tinymce.min.js" referrerpolicy="origin"></script> <script>tinymce.init({selector:"#threadCont", height: 300, resize: false });</script></head>
3 回答
繁星点点滴滴
TA贡献1803条经验 获得超3个赞
我认为你需要这样做
<form action='addnewthread.php' method='post'>
<input type='text' name='thread-title' id='thread-title' placeholder='Type title here' class='user-input'
<?php
if(isset($_SESSION['threadTitle']) && !empty($_SESSION['threadTitle']))
{
echo "value='{$_SESSION['threadTitle']}'";
}
?>
>
<textarea id='threadCont' name='threadCont'>
<?php
if(isset($_SESSION['threadCont']) && !empty($_SESSION['threadCont']))
{
echo $_SESSION['threadCont'];
}
?>
</textarea>
<button id='submit' type='submit' name='submit'value='success'>Submit</button>
</form>
拉风的咖菲猫
TA贡献1995条经验 获得超2个赞
只需回显变量，只需注意"and'因为字符串连接。
对于输入：
<input type='text' name='thread-title' id='thread-title' placeholder='Type title here' class='user-input'
<?php
if(isset($_SESSION['threadTitle'])&!empty($_SESSION['threadTitle'])
{
echo "value='".$_SESSION['threadTitle']."'";
}
?>
/>
对于文本区域：
<textarea id='threadCont' name='threadCont'>
<?php
if(isset($_SESSION['threadCont'])&!empty($_SESSION['threadCont'])
{
echo $_SESSION['threadTitle'];
}
?>
</textarea>
侃侃尔雅
TA贡献1801条经验 获得超16个赞
我检查了您的代码，发现您忘记添加圆括号：
<form action='addnewthread.php' method='post'>
<input type='text' name='thread-title' id='thread-title' placeholder='Type title here' class='user-input'
<?php
if(isset($_SESSION['threadTitle'])&&!empty($_SESSION['threadTitle']) <--here
{
echo "value='{$_SESSION['threadTitle']}'";
}
?>
>
<textarea id='threadCont' name='threadCont'>
<?php
if(isset($_SESSION['threadCont'])&&!empty($_SESSION['threadCont']) <--and here
{
echo $_SESSION['threadCont'];
}
?>
</textarea>
<button id='submit' type='submit' name='submit'value='success'>Submit</button>
</form>
您还需要替换&为&&.
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