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OnAfterLogin

This event occurs after a user is successfully logged in into the application.

 

Signature:

function OnAfterLogin ($userName, $connection, &$canLogin, &$errorMessage)

 

Parameters:

$userName

The name of the logged user.

$connection

An instance of the EngConnection class.

$canLogin

Specifies whether a user can login (true by default). You can set the value of this parameter to false to disable login even for a user who provided valid credentials.

$errorMessage

A message to be displayed when valid credentials are provided, but $canLogin == false.

 

Example 1:

Among other things this event can be used for tracking the user activity. The code snippet below inserts a new record containing user name and the login time into the 'log' table.

 

$connection->ExecSQL("INSERT INTO log(user_name, log_date) 

  VALUES ('$userName', CURRENT_TIMESTAMP)");

 

Example 2:

The following code allows to redirect users to home page after login.

 

header('Location: index.php');

exit;

 

Example 3:

The following code locks user account if number of failed login attempts exceeded otherwise the counter of failed login attempts is reset.

 

$sql = "SELECT failed_login_attempts FROM phpgen_users WHERE user_name='$userName'"; 

$failedLoginAttempts = $connection->ExecScalarSQL($sql);

if ($failedLoginAttempts >= 3) {

  $canLogin = false;

  $errorMessage = 

    "Dear $userName, your account is locked due to too many failed login attempts.";

} else {

  $sql = "UPDATE phpgen_users SET failed_login_attempts = 0 WHERE user_name='$userName'";

  $connection->ExecSQL($sql);

}

 

 

See also: OnAfterFailedLoginAttempt and OnBeforeLogout events



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