Wrapper for bulk actions in WP MU install [Wordpress]

bulk_actions_wrapper_wp_mu.php

if ( is_multisite()) {
	$sites = get_sites();			
	foreach ($sites as $site ) {
		$blog_id = $site->blog_id;				
				//if ($blog_id < 6 ){ //if we need just certain blogs 
				switch_to_blog( $blog_id );
				  wp_suspend_cache_addition(true);
				  	//here's what we're gonna do...
						
			  	wp_suspend_cache_addition(false);
		  	restore_current_blog();	
				//} //endif $blog_id
		sleep(3); // this should be paused for 3 seconds before every other blog
	}//endforeach				
}//endif multisite