wp_login Action hook with conditional tag

Question

i tried to create a simple function to receive a email when a specify user is logged, i tried with $current_user->ID and also with wp_get_current_user() but not working. This is my code:

function InvioMail() {
     global $current_user;
   $ID = $current_user->ID;
    $user = wp_get_current_user();
  $name = $user->user_login;

    if ($name == 'piero') {

        $to = '[email protected]';
        $subject = 'test su action hook wp_login';
        $body = 'test su action hook pwp_login';
        $headers = array('Content-Type: text/html; charset=UTF-8','From: My Site Name <[email protected]');

        wp_mail( $to, $subject, $body, $headers );
    }
}

add_action( 'wp_login', 'InvioMail');

Without if condition work property but when i try with IF nothing.

Where I'm wrong?

Answer 1

This should work for you, make sure that the user_login or user_id matches to the string you're using in the condition. Try to do a var_dump($user_login);

And about the function you're using, you don't need to grab the global or call get_current_user();, because the action you're calling already pass two parameters to your function, the first is a string with the $user_login, and the second is a WP_User object the current logged in user.

To use it, just change your code to this:

function InvioMail($user_login, $user) {

  if ($user_login == 'piero') {

    $to = '[email protected]';
    $subject = 'test su action hook wp_login';
    $body = 'test su action hook pwp_login';
    $headers = array('Content-Type: text/html; charset=UTF-8','From: My Site Name <[email protected]');

    wp_mail( $to, $subject, $body, $headers );
  }
}

add_action( 'wp_login', 'InvioMail', 10, 2);

To learn more about this hook, check the Docs.

Answer 2

Try the code below.

function InvioMail() {
  global $current_user;

  if ($current_user->ID == 1){ // change id 1 to your user id 

    $to = '[email protected]';
    $subject = 'test su action hook wp_login';
    $body = 'test su action hook pwp_login';
    $headers = array('Content-Type: text/html; charset=UTF-8','From: My 
    Site Name <[email protected]');

    wp_mail( $to, $subject, $body, $headers );
   }
}

add_action( 'wp_login', 'InvioMail');