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Check if the user is logged in
function Checklogin () {
if (Emptyempty ($_session[' User_info ')) {//check to see if the SESSION is empty
if (Emptyempty ($_cookie[' username ')) | | emptyempty ($_cookie[' password ')) {//If the session is empty and the user does not choose to log the login form
Header ("location:login.php?req_url=". $_
prompts to create a password reset disk.
If you enter the wrong password in the Windows XP login window, the login failure window pops up, and if you do not remember what your password is, click the Reset button, start the Password
Remember that when logging on to QQ, we can choose to remember the password for automatic login. This function is really convenient and practical. When we log on to the website background, the browser prompts whether to remember the logon status. The php implementation remembers that there are more than one automatic password logon method. the following shows two
PHP implementation Remember password automatic login method more than one, there are two emptyempty, in fact, it is because the code highlighted a bug. Hope to be helpful to everyone.
A, user log in check
Copy CodeThe code is as follows:
Check if the user is logged on
function Checklogin () {
if (Emptyempty ($_session[' User_info ')) {//check if the session is empty
if (Emptyempty ($_cookie['
failure, not to find is the failure.It can be seen clearly that there is nothing to manipulate the database.Import java.io.*;import java.sql.*;import javax.servlet.*;import javax.servlet.http.*;p ublic class Login extends HttpServlet {//Prevents users from entering URLs directly to access this servletprotected void doget (httpservletrequest request,httpservletresponse response) Throws Servletexception, IOException {printstream out = new PrintStream (
The php implementation remembers that there are more than one automatic Password Logon method. The following shows two emptyempty methods, which are actually one, because the code is highlighted with a bug. I hope to help you.1. User Logon checkCopy codeThe Code is as follows:// Check whether the user logs onFunction checklogin (){If (emptyempty ($ _ SESSION ['user _ info']) {// check whether the session is empty.If (emptyempty ($ _ COOKIE ['
The php implementation remembers that there are more than one automatic Password Logon method. The following shows two emptyempty methods, which are actually one, because the code is highlighted with a bug. I hope to help you.
1. User Logon checkCopy codeThe Code is as follows: // check whether the user logs onFunction checklogin (){If (emptyempty ($ _ SESSION ['user _ info']) {// check whether the session is empty.If (emptyempty ($ _ COOKIE ['
In order to facilitate user login, almost all of the website has realized the "Remember Password", "automatic landing" such as seemingly humanized function.I also like this function, because my own brain is really hate to remember things.For the sake of security, my password is very complex, satisfying "number + special symbol + English letter case".But the
When we log in to the site management backstage, there will be prompted to remember the status of login, remember me and so on, this option is what to use it. If you check the log in state, the next time you browse the Web site does not need to fill in the user name and password, in the log in. Here is a small code, a simple description of the idea of automatic login
/**
* Validator for Login.
*/
Final class Loginvalidator {
Private Function __construct () {
}
/**
* Validate the given username and password.
* @param $username and $password to be validated
* @return Array array of {@link
A php user name and password verification instance program. For more information, see.
The user name and password entered by the user are verified during logon.
The Code is as follows:
Copy code
/*** Validator for Login.*/Final class LoginValidator {Private function _ construct (){}/*** Validate the given
PHP Production Remember the password automatic login solution idea, in fact, is the operation of the Session,cookiesCheck if the user is logged on
The code is as follows
Copy Code
function Checklogin () {if (Empty ($_session[' user_info ')) {//check if the session is emptyif (Empty ($_cookie[' username ')) | | | empty ($_cookie['
Php remembers the implementation of the next automatic password login
When creating a website, you will often encounter the need to remember the password. The next time you log on automatically, you will not log on within one week, and you will not log on within one month. This function is generally implemented through cookies. This article will briefly explain h
To realize the ability to remember password automatic login Most of us are using the client's cookies to achieve, we use PHP is no exception, the need for friends can refer to.
PHP Production Remember password automatic login to solve the idea, in fact, is the operation of Session,cookiesCheck if the user is logged in
(This article reproduced: http://hi.baidu.com/pcbbt/item/03a53f3cda9827ffde222149)
PHP implements automatic login by remembering the password
PHP implements more than one method to remember the password for automatic login.
1. User Logon check
// Check whether the user logs on
Function checklogin () {If (empty ($ _ ses
The previous learning process has finished learning Android, but in the next nearly a year has not been developed Android, so all the knowledge of Android is a little forgotten, so will continue to learn Android, make this study notes. In addition: Because in the summer time to develop the Android project, so for these Android knowledge points are also proficient in mastering.DirectoryOne, the JUnit test under AndroidSecond, the login record
input Document.cookie you can see the cookie setting succeeds, the next time you log on, Filter will determine if you need to authenticate the user name and password again. , Filter needs to add the following code // If there is a cookie, log in with a cookie String UserName == Tools.getcookie (req, constant.session_password); if NULL NULL ) { Req.setattribute ("Us
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