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Display a different page if the user is not unique (based on cookies)

Submitted on 13/12/2008
Authors Comment: Ever wanted to show a different page if a user is not unique? Or perhaps protect a user from reloading the page? This script will do all of that and more!. Everything is commented with great detail.
How to use:

Code



<?php

/*

Example for Display a different page if the user is not unique (based on cookies)

*/



// Script name

include("ip.php");



if(UNIQUE == true)

{

	echo "User is Unique";

}

else

{

	echo "User is NOT Unique";

}

?>
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Snippet:

  1. <?php
  2.         /*
  3.        
  4.         * Display a different page if the user is not unique
  5.         * but will show the same page after a while.
  6.         * Cookie based
  7.        
  8.         *** [ Configure ] ***
  9.         */
  10.        
  11.         /*
  12.         * Time in seconds for the website to change after first load;
  13.         * You can also use (60*60*7) instead of the value
  14.         * Current Value: 24h
  15.         */
  16.         $time   =       86400;
  17.        
  18.         /* Check if the cookie is already set */
  19.         if(isset($_COOKIE['Expire'])
  20.         {
  21.                 /*
  22.                 * If it is, then the user is NOT Unique
  23.                 */
  24.                 define('UNIQUE',false);
  25.         }
  26.         /* If it is not set, then we better set it! */
  27.         else
  28.         {
  29.                 /*
  30.                 * The user is unique
  31.                 */
  32.                 define('UNIQUE',true);
  33.                
  34.                 /*
  35.                 Lets get the time the cookie will be expired
  36.                 */
  37.                 $expire = time() + $time;
  38.                
  39.                 /*
  40.                 Set the cookie
  41.                 */
  42.                 setcookie("Expire",$expire,$expire);
  43.         }
  44. ?>
 

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