php利用cookie实现自动登录的方法

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我是靠谱客的博主无限大侠，最近开发中收集的这篇文章主要介绍php利用cookie实现自动登录的方法，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

本文实例讲述了php利用cookie实现自动登录的方法。分享给大家供大家参考。具体实现方法如下：

html前端页面代码如下:

复制代码代码如下:

<html> 

  <head> 

  <title>enter password</title> 

  </head> 

  <body> 

  <form name="forml" method="post" action="cookiebasedpasswordlogin.php"> 

    <table> 

      <tr> 

       <td colspan="2" > 

         <div align="center"><b>please specify the password</b></div> 

       </td> 

     </tr> 

   <tr>> 

     <td> 

       <div align="right">customer id</div> 

     </td> 

     <td> 

       <input type="text" name="username"> 

     </td> 

   </tr> 

   <tr> 

     <td> 

       <div align="right">password</div> 

     </td> 

     <td> 

       <input type="password" name="password"> 

     </td> 

   </tr> 

   <tr> 

     <td colspan="2"> 

       <center> 

         <input type="submit" name="submit" value="login"> 

       </center> 

     </td> 

    </tr> 

   </table> 

  </form> 

  </body> 

</html>

后端PHP代码如下:

复制代码代码如下:

<?php 

    $now = getdate(); 

    $storetime= $now["weekday"] . " " . $now["month"] ." " . $now["year"] ; 

    $storetime.=" time : "; 

    if ($now["hours"] < 10) { 

      $storetime.= "0" . $now["hours"]; 

    } else { 

      $storetime.= $now["hours"]; 

    } 

    $storetime.= ":"; 

    if ($now["minutes"]<10) { 

      $storetime.= "0" . $now["minutes"]; 

    } else { 

      $storetime.= $now["minutes"]; 

    } 

    $storetime.= ": "; 

    if ($now["seconds"] <10) { 

      $storetime.= "0" . $now["seconds"]; 

    } else { 

      $storetime.= $now["seconds"]; 

    } 

    if (isset($data)) { 

       $counter=++$data[l]; 

        setcookie("data[0]",$storetime,time() + (60*60*24)); 

        setcookie("data[l]", $counter,time() + (60*60*24)); setcookie("data[2]",$username,time() + (60*60*24)); 

        echo "<b><center>hi " . $data[2] . " ! !</center></b><br>n"; 

        echo "<b><center>last login time :" .$data[0] . "</center></b><br>n"; 

        echo "<b><center>current date :" .$storetime. "</center></b><br>n"; 

        echo "<b><center>page view count :" . $data[l]. "</center></b><br>n"; 

        echo "<b><center>you have successfully logged in!</center></b>"; 

        echo ("<b><contor>you can access this area without entering a password for the next 24 hours!</center></b>"); 

   } else { 

    if (isset($username) && isset($password)) { 

     if ($password=="superpass") { 

          $counter=0; 

          setcookie("data[0]",$storetime,time() + (60*60*24)); 

          setcookie("data[l]",$counter,time() + (60*60*24)); 

          setcookie("data[2]",$username,time() + (60*60*24)); 

          $url="location: cookieimp.php"; 

          header($url);

     }else{ 

          echo "<hl><center>invalid password!!!</center></hl>"; 

     } 

    } 

} 

?>