show user id to user main page with a column

User id column in user page.php

<?php 

// Add Column for user id in user main page
function cb_author_user_id_column( $columns ) 
{
    $columns['uid'] = 'ID';
    return $columns;
}
//print suer id to user column 
function cb_author_user_id_display_column( $empty, $column_name, $user_id ) 
{
    if ( 'uid' != $column_name )
        return $empty;

    return '<strong>'.esc_html($user_id).'</strong>';
}

add_filter( 'manage_users_columns', 'cb_author_user_id_column' );
add_filter( 'manage_users_custom_column', 'cb_author_user_id_display_column', 10, 3 );