php利用cookie实现自动登录的方法

2024-05-04 23:28:49

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这篇文章主要介绍了php利用cookie实现自动登录的方法,涉及针对cookie的读取判断及登陆操作,是非常实用的技巧,需要的朋友可以参考下

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>"; 
		     } 
		    } 
		} 
		?>