Php login user name and password verification program code. A php user name and password verification instance program. For more information, see. The following code verifies the user name and password entered during logon.
The user name and password entered by the user are verified during logon.
| The code is as follows: |
|
/**
* Validator for Login.
*/
Final class LoginValidator { Private function _ construct (){
} /**
* Validate the given username and password.
* @ Param $ username and $ password to be validated
* @ Return array of {@ link Error} s
*/
Public static function validate ($ username, $ password ){
$ Errors = array ();
$ Username = trim ($ username );
If (! $ Username ){
$ Errors [] = new Error ('username', 'user name cannot be blank. ');
} Elseif (strlen ($ username) <3 ){
$ Errors [] = new Error ('username', 'user name length cannot be less than 3 characters. ');
} Elseif (strlen ($ username)> 30 ){
$ Errors [] = new Error ('username', 'the username length cannot exceed 30 characters. ');
} Elseif (! Preg_match ('/^ [A-Za-z] + $/', substr ($ username, 0, 1 ))){
$ Errors [] = new Error ('username', 'the user name must start with a letter. ');
} Elseif (! Preg_match ('/^ [A-Za-z0-9 _] + $/', $ username )){
$ Errors [] = new Error ('username', 'user name can only be a combination of letters, numbers, and underscores. ');
} Elseif (! Trim ($ password )){
$ Errors [] = new Error ('password', 'the password cannot be blank. ');
} Else {
// Check whether use exists or not
$ Dao = new UserDao ();
$ User = $ dao-> findByName ($ username ); If ($ user ){
If (! ($ User-> getPassword () = sha1 ($ user-> getSalt (). $ password ))){
$ Errors [] = new Error ('password', 'the user name or password is incorrect. ');
}
} Else {
$ Errors [] = new Error ('username', 'user name does not exist. ');
}
}
Return $ errors;
}
} ?> |
2. call the validators for verification.
| The code is as follows: |
|
$ Username = null;
$ Password = null;
$ Msg = ""; If (isset ($ _ POST ['username']) & isset ($ _ POST ['password']) {
$ Username = addslashes (trim (stripslashes ($ _ POST ['username']);
$ Password = addslashes (trim (stripslashes ($ _ POST ['password']);
// Validate
$ Errors = LoginValidator: validate ($ username, $ password );
If (empty ($ errors )){
// Save the latest ip or login time into database, then processing page forwarding
$ Dao = new UserDao ();
$ User = $ dao-> findByName ($ username );
$ Last_login_ip = Utils: getIpAddress ();
$ User-> setLastLoginIp ($ last_login_ip );
$ Now = new DateTime ();
$ User-> setLastLoginTime ($ now );
$ Dao-> save ($ user );
UserLogin: setUserInfo ($ user );
Flash: addFlash ('login successful! ');
Utils: redirect ('Welcome ');
}
Foreach ($ errors as $ e ){
$ Msg. = $ e-> getMessage ()."
";
} |
The user name and password used to authenticate the instance program when logging on to the supervisor. For more information, see. The user name and password entered by the user during login are verified as follows...
