Separate Out Real Users

Question

If I look at

/wp-admin/users.php

I see all the users, but some have given a bogus email and never used their password.

Is there some way to see who has used their password at least once? If not, is there a plugin to do this going forward?

Answer 1

If you install the following plugin and leave that one running for a while... you can see who logged in since using that plugin:

http://wordpress.org/extend/plugins/wp-last-login/

That seems to do what you need.

As far as I quickly can see it runs on $this->hook( 'wp_login' ) and does:

$user   =   get_user_by( 'login', $user_login );
update_user_meta( $user->ID, 'last-login-in-meta-table', time() );

Possibly the

user-settings-time 

in the meta table can help somewhat on determining the history before installing the plugin, never used it (see http://wpseek.com/wp_user_settings/)

Answer 2

Login information like this is not stored anywhere in database. But you can add it for future users. Following code will check for current user meta user_login_count on each login and increase it by 1 or set it to '1' on first login.

<?php
add_action('wp_login', 'my_count_logins');
function my_count_logins() {
    $user_id = get_current_user_id();
    $user_login_count = (int) get_user_meta($user_id, 'user_login_count', true);
    if($user_login_count)
        $user_login_count++;
    else
        $user_login_count = 1;
    update_user_meta($user_id, 'user_login_count', $user_login_count)
}

Following code adds additional column Login count to the Users table:

function my_alter_user_table( $column ) {
    $column['user_login_count'] = __('Login count');
    return $column;
}
add_filter( 'manage_users_columns', 'my_alter_user_table' );

function my_alter_user_row( $val, $column_name, $user_id ) {
    switch ($column_name) {
        case 'user_login_count' :
            return get_user_meta($user_id, 'user_login_count', true);
        break;
        default:
    }
    return $return;
}
add_filter( 'manage_users_custom_column', 'my_alter_user_row', 10, 3 );