Publishing function for WP MU Cron [Wordpress]

publishing.php

if (!defined('ABSPATH')) {require_once(dirname( __FILE__ ) . '/wp-load.php');}
global $wpdb;
$blog_id = get_current_blog_id();				
	$args = array('post_type' => 'post', 'post_status'    => 'draft' , 'numberposts'     => 50,  'fields' => 'ids');
	$future_posts = get_posts( $args );
		foreach ($future_posts as $future_post) { 
			$my_post = array('ID'   => $future_post, 'post_status' => 'publish');
			$upd = wp_update_post( $my_post, true );	
		}