RCCWP_Post::PrepareFieldsValues PHP Method

    function PrepareFieldsValues($postId)
    {
        global $wpdb;
        // Format Dates
        if (isset($_REQUEST['rc_cwp_meta_date'])) {
            foreach ($_REQUEST['rc_cwp_meta_date'] as $meta_name) {
                $metaDate = strtotime($_POST[$meta_name]);
                $formatted_date = date('Y-m-d', $metaDate);
                $_POST[$meta_name] = $formatted_date;
            }
        }
    }

 function SaveCustomFields($postId)
 {
     if (!wp_verify_nonce($_REQUEST['rc-custom-write-panel-verify-key'], 'rc-custom-write-panel')) {
         return $postId;
     }
     if (!current_user_can('edit_post', $postId)) {
         return $postId;
     }
     RCCWP_Post::SetCustomWritePanel($postId);
     RCCWP_Post::PrepareFieldsValues($postId);
     RCCWP_Post::SetMetaValues($postId);
     return $postId;
 }