vb.org Archive - Wordpress Multi - site Header & Footer Integration with vBulletin 5.0.x

Wordpress Multi - site Header & Footer Integration :

Hello,
I'm trying to integrate vBulletin 5.0.x with Wordpress.
Specifically, I'm trying to add the WordPress header and footer to show in vBulletin using Wordpress's functions get_header() and get_footer() that come from the file wp-blog-header.php in the WordPress installation folder. But my Wordpress site is a multi - site and I need header and footer of a particular website.

I have tried Wordpress header & footer integration with vBulletin 5.0.x for single website and It works fine.
I refer this post : Wordpress Header & Footer Integation for Wordpress header & footer integration with vBulletin 5.0.x for single website.

While intergration of Wordpress multi - site header & footer with vBulletin 5.0.x, I got following error :

Fatal error: Call to undefined method stdClass::escape() in \wp-content\sunrise.php.

################################################## ##
PHP code : (written into packages/extension/api/options.php)

PHP Code:


		
			
<?php

class wpHeaderFooter_Api_Options extends vB_Api_Extensions
{
    public $product = 'wpheaderfooter';
    public $version = '1.0.0';
    public $developer = 'me';
    public $title = 'WordPress Integration Extension';
    public $minver = '5.0.4';
    public $maxver = '5.1.3';
    public $infourl = '';
    public $checkurl = '';
    public $AutoInstall = 1;
    public $extensionOrder = 10;
    
    public function wpHeader(){
       define('ROOT_DIR',str_replace('\\\\', '/', realpath(dirname(__FILE__))).'/'); #Get real path for root dir ---linux and windows
        require_once(ROOT_DIR.'../testsite/wp-blog-header.php'); // get WordPress  
        get_header();        
    }
    
    public function wpFooter(){
        define('ROOT_DIR',str_replace('\\\\', '/', realpath(dirname(__FILE__))).'/'); #Get real path for root dir ---linux and windows
        require_once(ROOT_DIR.'../testsite/wp-blog-header.php'); // get WordPress  
        get_footer();
    }
}

So any help would be greatly appreciated.
Thanks!!!:)

X vBulletin 3.8.12 by vBS Debug Information
Page Generation 0.01487 seconds Memory Usage 1,721KB Queries Executed 10 (?)
More Information
Template Usage: (1)ad_footer_end (1)ad_footer_start (1)ad_header_end (1)ad_header_logo (1)ad_navbar_below (1)bbcode_php_printable (1)footer (1)gobutton (1)header (1)headinclude (6)option (1)post_thanks_navbar_search (1)printthread (1)printthreadbit (1)spacer_close (1)spacer_open Phrase Groups Available: global postbit showthread	Included Files: ./printthread.php ./global.php ./includes/init.php ./includes/class_core.php ./includes/config.php ./includes/functions.php ./includes/class_hook.php ./includes/modsystem_functions.php ./includes/class_bbcode_alt.php ./includes/class_bbcode.php ./includes/functions_bigthree.php Hooks Called: init_startup init_startup_session_setup_start init_startup_session_setup_complete cache_permissions fetch_threadinfo_query fetch_threadinfo fetch_foruminfo style_fetch cache_templates global_start parse_templates global_setup_complete printthread_start bbcode_fetch_tags bbcode_create bbcode_parse_start bbcode_parse_complete_precache bbcode_parse_complete printthread_post printthread_complete
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