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##The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computerSolution to the problem that php cannot pass session: 1. Enable cookies in the client; 2. Check browser issues and access cookies; 3. Enable session.use_trans_sid in php.ini.
Solution to the problem that SESSION cannot be passed across pages in PHP
1. Cookies are disabled on the client
2. There is a problem with the browser and cookies cannot be accessed temporarily
3. The session in php.ini. use_trans_sid = 0 or the --enable-trans-sid option was not turned on during compilation
The session in PHP uses the client's cookie to save the session id by default, so when there is a problem with the client's cookie, it will affect the session. It must be noted that session does not necessarily have to rely on cookies, which is also the brilliance of session compared to cookies. When the client's cookies are disabled or there is a problem, PHP will automatically attach the session id to the URL, so that the session variable can be used across pages through the session id. But this attachment also has certain conditions, namely "session.use_trans_sid = 1 in php.ini or the --enable-trans-sid option is turned on during compilation".
2. Manually pass the value through the URL and pass the session id through the hidden form.
3. Save session_id in a file, database, etc., and call it manually during the cross-page process.
##0a23c2df7766fa4dd665784ce1095c7fNext page5db79b134e9f6b82c0b36e0489ee08ed " ;Now if you manually close the cookie on the client and run it again, you may not get the result. If you can't get the result, then "set session.use_trans_sid = 1 in php.ini or turn on the --enable-trans-sid option when compiling", and you will get the result "People's Republic of China"
echo $url ; ?>
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Run the above code. If the client cookie is normal, you should be able to get the result "People's Republic of China".
This This is the approach 1 mentioned above.
Let’s talk about approach 2:
The modified code is as follows:
s1.php1e26b40d7ed6385bb5a8ce628fbd11e3Next page5db79b134e9f6b82c0b36e0489ee08ed " ;
echo $url ; ?>
s2.php method 3: login.htmla819b8666d8fe02a78fa2892e72ea099
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41a5f5b1b33237b4b957543f2d56b8222bedeca3b59bc9043d980ca2c4ee9ae478be06d3b30a07e136ee9d51420b446b Login 5e454bd701c0ed03d8d084984fc2937c
e20eacd233a25516f8c70cac02c28650
a6a6cfeaf7183f13aa5e4295cf3cf459
ea528bfe9c6ff11c9a0fee542de3a0f1 请登录:
3fd7ea9e49f624a82933097cc54bf44e
用户名 :45f27d884d82148c80aaa56fa6c9ad162cd52db9b797f2c7ecc9db34e8bbc4a4
口 令 :85b9a7bf89552c1cd541a394bf3a9a9c2cd52db9b797f2c7ecc9db34e8bbc4a4
5335c990bb83550084a38c033c3d2ff7
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6c43a20649803ce66e1cf02d350de18b
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mylogin1.php
<? php $name = $_POST [ ' name ' ]; $pass = $_POST [ ' pass ' ]; if ( ! $name || ! $pass ) { echo " 用户名或密码为空,请<a href="login.html">重新登录</a> " ; die (); } if ( ! ( $name == " laogong " && $pass == " 123 " )) { echo " 用户名或密码不正确,请<a href="login.html">重新登录</a> " ; die (); } // 注册用户 ob_start (); session_start (); $_SESSION [ ' user ' ] = $name ; $psid = session_id (); $fp = fopen ( " e:/tmp/phpsid.txt " , " w+ " ); fwrite ( $fp , $psid ); fclose ( $fp ); // 身份验证成功,进行相关操作 echo " 已登录<br> " ; echo " <a href="mylogin2.php">下一页</a> " ; ?>mylogin2.php
b0b56d015401d6a33ac5b27dc16bc1calog in5db79b134e9f6b82c0b36e0489ee08ed to browse " ;
Die ();
}
?>
Please also turn off the cookie test. Username: laogong Password: 123 This is to save the session id through a file. The file is: e:/tmp/phpsid.txt. Please decide the file name or path according to your own system. .
As for the database method, I will not give an example, it is similar to the file method.
To summarize, the above methods have one thing in common, which is to get the session id on the previous page, and then find a way to pass it to the next page. Add the code session_id (pass it) before the session_start(); code on the next page. Session id that came over);
Recommended study: "PHP Video Tutorial"
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