1st one; Delete your 5000 spam comments in 1 second :)

Yes you read it rightly. You can delete your spam comments from mysql in 1 second. Firstly you have to login to your Mysql Manager and integrate this lines from tab.

Here is the code:

DELETE from wp_comments WHERE comment_approved = '0';

That’s All! You delete your spam comments :)

2nd one; Show number of queries on your footer

You can show number of queries and query time on your template’s footer. That’s a simple code again and you have to edit your footer.php file. Add this lines to footer.php

Here is the code;

<?php if (is_user_logged_in()) { ?>
 <?php echo get_num_queries(); ?> queries in <?php timer_stop(1); ?> seconds.
<?php } ?>

We add if_user_logged_in because we dont want to visitors see this line :)

That’s All. Have a nice day!