WordPress Plugin to list used and standing ready RAM and SQL Queries in Admin-Footer

get_ram_in_footer.php

<?php
/**
 * Plugin Name: Get RAM in Footer
 * Plugin URI:  https://gist.github.com/bueltge/1204323
 * Description: List RAM, SQL Queries and RAM version in Footer
 * Version:     1.0
 * Author:      Frank B&uuml;ltge
 * Author URI:  http://bueltge.de/
 */

add_filter( 'admin_footer_text', 'fb_get_ram' );
function fb_get_ram( $footer_text ) {
	
	$footer_text .= ' &bull; RAM ' . number_format( ( memory_get_peak_usage()/1024/1024 ), 1, ',', '' ) . '/' . WP_MEMORY_LIMIT;
	$footer_text .= ' &bull; SQL ' . $GLOBALS['wpdb']->num_queries;
	$footer_text .= ' &bull; PHPv ' . phpversion();
	
	return $footer_text;
}