Remember Me Cookies for Ninja Forms + Mailchimp

Remember Me Cookies

<?php
/*
Plugin Name: Remember Me Cookies
Description: Remember Me Cookies for Ninja Forms + Mailchimp
Version: 1.0
*/

function ninja_forms_code()
{
    //step 1

    //Have cookie, have wp query on ID, populate form values

    function get_cookies() {
        global $wp_query;
        $post_ID = $wp_query->post->ID;
        if (!isset($_COOKIE['tradebase_lp'])) {
            setcookie( "tradebase_lp", $post_ID, strtotime( '+10 days' ) );  /* expire in 10 days */
        }
    }

add_action( 'wp_head', 'ninja_forms_before_pre_process');

    //step 2

    // If remember me checked, save ID to cookie
    if (form_value('remember_me') == 'yes') :
     function remember_me_checked() {
           global $wp_query;
              $id = $post->ID;
              setcookie('tradebase_lp' . $id); //set the cookie
    }
    add_action( 'ninja_forms_post_process', 'remember_me_checked' );
    endif;