need help with cookies

[david212]

My hometask says: each user must register own email address  to download the file. You must use  cookies to detect whether the user has already registered, and to ensure that the user downloads the file only once within 7 days of registering.

 

I have been making a lot of things but i can get it working. Please help!

 

The last code i wrote is this:

 

<?php
if (!empty($_POST['delete_cookie'])) {
setcookie("sevendays", "", time()-3600);
}

if(isset($_POST['terms'])AND(isset($_POST['email']))AND(empty($_COOKIE["sevendays"]))){
$email = $_POST['email'];
setcookie("sevendays", "email", time()+60*60*24*7);
$filepath = $_SERVER['DOCUMENT_ROOT']."/.php_files/acme_brochure.pdf";
if (file_exists($filepath)) {
header("Content-Type: application/force-download");
header("Content-Disposition:filename=\"brochure.pdf\"");
$fd = fopen($filepath,'rb');
fpassthru($fd);
fclose($fd);
}
}

?>
<?php
if (isset($_POST['ok'])){

if($_POST['mail']== $_COOKIE['email']){
echo "This email address has already been registered<br>";
}else {
echo "<h3>Thank you!</h3>";
}
}
?>
<?php
if (!empty($_COOKIE["sevendays"])) echo "only in 7".$_COOKIE["sevendays"]." days!";
if ($_COOKIE["sevendays"]) {
echo $_COOKIE["sevendays"];
?>

<a href="download.php?delete_cookie=1">Not my email: <? echo $_COOKIE["sevendays"]; ?>?</a>
<?php
}else {
?>
<h3>Please register</h3>


<form method="POST" action="?">
<table>
<tr>
<td align="right">
Name:
</td>
<td align="left">
<?
if ($_COOKIE['name']) {
   echo $_COOKIE['name'];
}
else {

?>

<input type="text" size="25" name="name" value="<? echo $_POST['name']; ?>">
<?php
}

?>


</td>
</tr>
<tr>
<td align="right">
Email:
</td><td align="left">
<?
if ($_COOKIE['email']) {
   echo $_COOKIE['email'];
}
else {
?>
<input type="text" size="25" name="email" value="<? echo $_POST['email']; ?>">
<?php
}

?>

</td>
</tr>




<tr>
<td colspan="2">
<input type="checkbox" name="terms" checked="checked">I accept terms and conditions.<br/>
</td>
</tr>
<tr>
<td colspan="2" align="center">
<input type="submit" name="ok" value="SUBMIT" />
</td></tr>
</table>
</form>
<?php
}
?>

 

i can't get it working. Please help!

[johnsmith153]

.

[david212]

nice answer but i really need the help!