This article mainly introduces how PHP records user names and passwords based on cookies. Interested friends can refer to it. I hope it will be helpful to everyone.
The details are as follows:
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <form id="form1" name="form1" method="post" action="check_remember.php"> <table width="300" border="1" align="center" cellpadding="0" cellspacing="0"> <thead> <tr> <td colspan="2" align="center"><b>记住用户名和密码</b></td> </tr> </thead> <tr align="center"> <td>用 户 名:</td> <td><input type="text" value="<?php echo $_COOKIE['name'];?>" name="name"></td> </tr> <tr align="center"> <td>密码:</td> <td><input type="password" name="password" value="<?php echo $_COOKIE['password']?>"></td> </tr> <tr align="center"> <td>记住用户名和密码</td> <td><?php if($_COOKIE['remember'] == 1){?><input type="checkbox" name="remember" value="1" checked><?php }else{($_COOKIE['remember'] == "")?><input type="checkbox" name="remember" value="1"><?php }?></td> </tr> <tr align="center"> <td colspan="2"><input type="submit" name="Submit" value="提交" /></td> </tr> </table> </form> check_remember.php <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <?php $name = $_POST['name']; $password = $_POST['password']; $remember = $_POST['remember']; if($remember == 1){ setcookie('name',$name,time()+3600); setcookie('password',$password,time()+3600); setcookie('remember',$remember,time()+3600); }else{ setcookie('name',$name,time()-3600); setcookie('password',$password,time()-3600); setcookie('remember',$remember,time()-3600); } echo "<a href=\"remember.php\">返回</a>"; ?>
Summary: The above is the entire content of this article, I hope it will be helpful to everyone's study.
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Absolute session timeout starts at the time of session creation, while an idle session timeout starts at the time of user's no operation. Absolute session timeout is suitable for scenarios where strict control of the session life cycle is required, such as financial applications; idle session timeout is suitable for applications that want users to keep their session active for a long time, such as social media.

The server session failure can be solved through the following steps: 1. Check the server configuration to ensure that the session is set correctly. 2. Verify client cookies, confirm that the browser supports it and send it correctly. 3. Check session storage services, such as Redis, to ensure that they are running normally. 4. Review the application code to ensure the correct session logic. Through these steps, conversation problems can be effectively diagnosed and repaired and user experience can be improved.

session_start()iscrucialinPHPformanagingusersessions.1)Itinitiatesanewsessionifnoneexists,2)resumesanexistingsession,and3)setsasessioncookieforcontinuityacrossrequests,enablingapplicationslikeuserauthenticationandpersonalizedcontent.

Setting the httponly flag is crucial for session cookies because it can effectively prevent XSS attacks and protect user session information. Specifically, 1) the httponly flag prevents JavaScript from accessing cookies, 2) the flag can be set through setcookies and make_response in PHP and Flask, 3) Although it cannot be prevented from all attacks, it should be part of the overall security policy.

PHPsessionssolvetheproblemofmaintainingstateacrossmultipleHTTPrequestsbystoringdataontheserverandassociatingitwithauniquesessionID.1)Theystoredataserver-side,typicallyinfilesordatabases,anduseasessionIDstoredinacookietoretrievedata.2)Sessionsenhances

PHPsessionscanstorestrings,numbers,arrays,andobjects.1.Strings:textdatalikeusernames.2.Numbers:integersorfloatsforcounters.3.Arrays:listslikeshoppingcarts.4.Objects:complexstructuresthatareserialized.

TostartaPHPsession,usesession_start()atthescript'sbeginning.1)Placeitbeforeanyoutputtosetthesessioncookie.2)Usesessionsforuserdatalikeloginstatusorshoppingcarts.3)RegeneratesessionIDstopreventfixationattacks.4)Considerusingadatabaseforsessionstoragei

Session regeneration refers to generating a new session ID and invalidating the old ID when the user performs sensitive operations in case of session fixed attacks. The implementation steps include: 1. Detect sensitive operations, 2. Generate new session ID, 3. Destroy old session ID, 4. Update user-side session information.


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