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php利用cookie实现自动登录的方法

更新时间:2020-03-01 11:26:30 作者:startmvc
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

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:

<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:
<?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>"; 
     } 
    } 
} 
?>

希望本文所述对大家的PHP程序设计有所帮助。

php cookie 自动登录 方法