PHP表单 - 未定义的常量'PHP_SELF' [英] PHP Form - Undefined constant ’PHP_SELF’

问题描述

我有一个联系表单，它在我的服务器上托管时工作正常，但是当我将它上载到我的客户端服务器时，我遇到了问题。请查看此页面： http://www.conceptonegfx.com/contact.php

我在表单顶部发现以下错误：注意：使用未定义常量'PHP_SELF' - E：\Domains\c\conceptonegfx.com\\\\\\\\\\\\\\\\\\\\\\\\\' ：未定义的索引：E：\域中的'PHP_SELF'在第42行id =uploadformenctype =multipart / form-data >

以下是fns.php上的问题：

  <？php 
 //启动会话
 if（！isset（$ _ SESSION））
 {
 session_start（）; 
} 
 
 
 //打印表格
函数print_form（）{
？> 
 
 
< form method =postclass =action = <？php echo $ _SERVER ['PHP_SELF'];？> id =uploadformenctype =multipart / form-data> 
< p>< label for =namefrom>名称< span class =required> *< / span>< / label> 
< input name =namefromid =namefromtype =textclass =fieldvalue =<？= $ _SESSION ['myForm'] ['namefrom'];？> 的tabindex = 1/>< / p为H. 
 
< p>< label for =emailfrom>电子邮件< span class =required> *< / span>< / label> 
< input name =emailfromid =emailfromtype =textclass =fieldvalue =<？= $ _SESSION ['myForm'] ['emailfrom'];？> 的tabindex = 3/>< / p为H. 
 
< p>< label for =phone>电话< / label> 
< input name =phoneid =phonetype =textclass =fieldvalue =<？= $ _SESSION ['myForm'] ['phone'];？> 的tabindex = 4/>< / p为H. 
 
< p>< label for =message> Message< span class =required> *< / span>< / label> 
< textarea name =commentsid =commentsrows =10cols =35align =leftclass =fieldtabindex =6><？= $ _SESSION [ 'myForm的'] [ '评论']; ？>< / textarea的>< / p为H. 
 
< p>< label for =attachment>文件上传< br />< / label> 
< input name =attachmentid =attachmenttype =filetabindex =7> 
 
< p>< input align =lefttype =submitname =submitid =submitvalue =Send Emailtabindex =8/><< ; / p为H. 
< p>< input type =hiddenname =submittedvalue =true/>< / p> 
< / form> 
  

解决方案

不知道这是问题还是复制粘贴但是：

 'PHP_SELF'
  

实际上应该是

 'PHP_SELF'
  

查看手动

从rdlowrey的帖子编辑：
您不应该使用$ _SERVER ['PHP_SELF']，因为它不是很安全。只需将action属性留空即可：action =。一个空的动作会导致表单POST到它发起的地址（与使用PHP_SELF相同，但没有安全缺点）。

I have a contact form, it works fine when hosted on my server, but when I uploaded it to my clients server I ran into problems. Please check out the page here: http://www.conceptonegfx.com/contact.php

I get the following errors at the top of the form

Notice: Use of undefined constant ’PHP_SELF’ - assumed '’PHP_SELF’' in E:\Domains\c\conceptonegfx.com\user\htdocs\fns.php on line 42

Notice: Undefined index: ’PHP_SELF’ in E:\Domains\c\conceptonegfx.com\user\htdocs\fns.php on line 42" id="uploadform" enctype="multipart/form-data">

Here are the problem lines on fns.php:

 <?php
//start session
 if(!isset($_SESSION)) 
 { 
 session_start(); 
 }  


  // prints form
   function print_form(){
   ?>


<form method="post" class="action="<?php echo $_SERVER[’PHP_SELF’];?>" id="uploadform" enctype="multipart/form-data">
<p><label for="namefrom">Name <span class="required">*</span></label>
<input name="namefrom" id="namefrom" type="text" class="field" value="<?= $_SESSION['myForm']['namefrom']; ?>" tabindex="1"/></p>

<p><label for="emailfrom">Email <span class="required">*</span></label>
<input name="emailfrom" id="emailfrom" type="text" class="field" value="<?= $_SESSION['myForm']['emailfrom']; ?>" tabindex="3"/></p>

<p><label for="phone">Phone</label>
<input name="phone" id="phone" type="text" class="field" value="<?= $_SESSION['myForm']['phone']; ?>" tabindex="4"/></p>

<p><label for="message">Message <span class="required">*</span></label>
<textarea name="comments" id="comments" rows="10" cols="35" align="left" class="field" tabindex="6"><?= $_SESSION['myForm']['comments']; ?></textarea></p>

<p><label for="attachment">File Upload<br /></label>
<input name="attachment" id="attachment" type="file" tabindex="7">

<p><input align="left" type="submit" name="submit" id="submit" value="Send Email"  tabindex="8"/></p>
<p><input type="hidden" name="submitted"  value="true" /></p>
</form> 

解决方案

Not sure if this is the problem or a copy paste thing but:

’PHP_SELF’

should really be

'PHP_SELF'

Have a look at the manual

Edit from rdlowrey's post: You shouldn't use the $_SERVER['PHP_SELF'] as it's not very secure. Simply leave the action attribute empty like this: action="". An empty action will cause the form to POST to the address where it originated (same as using PHP_SELF, but without the security disadvantages).

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