使用Cookie提交PHP后保留表单值

Question

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>

Answer 1

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.