使用Cookie提交PHP后保留表单值 [英] Keep form values after submit PHP with cookies

问题描述

我正在寻找一种方式来保存表单值提交后与cookies（在去page2后，回到page_form）。

我尝试了但是没有工作

 < ;? php 
 if（isset（$ _ POST ['Infos_test']））
 {
 $ expire = 8 * 3600; 
 setcookie（Infos_test，$ _POST ['from']& |& $ _ POST ['area_html']，time（）+ $ expire）; 
} 
？> 
  

.....

 <？php 
 if（isset（$ _ COOKIE ['Infos_test']））
 {
 $ Infos_test = explode（& ，$ _COOKIE ['Infos_test']）; 
} 
？> 
  

.....

 <？input type =textname =fromstyle =width：350pxvalue =<？php echo $ Info_test [0];？>/> 
 
< textarea valign =topname =area_htmlstyle =width：350px; height：150px; resize：none; /><？php echo $ Info_test [1]; ？>< / textarea> 
  

解决方案

我更喜欢在cookie之前使用SESSION变量。以下是示例代码：

在表单接收页面上：

  session_start（）; 
 $ _SESSION ['from'] = $ _POST ['from']; 
 $ _SESSION ['area_html'] = $ _POST ['area_html']; 
  

然后在您的其他页面上：

 <？php session_start（）; ？> 
<！ - 这里是你的html头等等 - > 
 From：<？php echo $ _SESSION ['from']; >< br> 
区域HTML：<？？php echo $ _SESSION ['area_html']; ？> 
  

注意 session_start（）;

表单的HTML语法应为：

 < input type =textname =fromstyle =width：350pxvalue =<？php echo $ _SESSION ['from'];？& /> 
< textarea valign =topname =area_html><？php echo $ _SESSION ['area_html']; ？>< / textarea> 
  

请注意INPUT标签的类型以及如何将值插入TEXTAREA的更改。 p>

I am looking for a way to keep form values after submit with cookies (after going to page2 and going back to page_form). I am really trying but i need you help guys.

I tried this but it didn't work

<? php
if (isset($_POST['Infos_test']))
{
$expire = 8*3600; 
setcookie("Infos_test", $_POST['from']&|&$_POST['area_html'], time()+$expire);  
}
?>

.....

<?php
if (isset($_COOKIE['Infos_test']))
{
$Infos_test = explode("&|&", $_COOKIE['Infos_test']); 
}
?>

.....

<input type="text" name="from" style="width:350px"  value="<?php echo $Info_test[0]; ?>"/>

<textarea valign="top" name="area_html" style="width:350px; height:150px; resize:none;" /><?php echo $Info_test[1]; ?></textarea>

解决方案

I prefer using SESSION variables before cookies. Here is an example code:

On the form recieving page:

session_start();
$_SESSION['from'] = $_POST['from'];
$_SESSION['area_html'] = $_POST['area_html'];

Then on your other page:

<?php session_start(); ?>
<!-- here is your html header etc -->
From: <?php echo $_SESSION['from']; ?><br>
Area HTML: <?php echo $_SESSION['area_html']; ?>

Note that the session_start(); part must be stated BEFORE any other HTML output.

HTML syntax for form should read:

<input type="text" name="from" style="width:350px" value="<?php echo $_SESSION['from']; ?>" />
<textarea valign="top" name="area_html"><?php echo $_SESSION['area_html']; ?></textarea>

Note the type of the INPUT tag and the change how values should be inserted into a TEXTAREA.

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