1. How to add Facebook comments in WordPress
The admin bar is a new feature added since WordPress 3.1. This bar by default appears at the top of the browser and displays links to quickly enter to edit an article, create a new one, enter the admin panel, etc..
If you want to show this bar at the bottom of the browser, so you just paste the following code in the functions.php file of your theme.
2.Remove Admin Bar
If what you want is for any reason not to show the admin bar, you just have to place the following code in the functions.php file:
3.Allow more HTML tags in your HTML editor for WordPress
WordPress HTML editor does not allow HTML tags that are not XHTML 1.0. This code causes the editor to accept more labels, so you just stick it in the functions.php file:
4.Make your article look better when shared to Facebook
This code is used when a user share your article in Facebook, look your best, with related image or default image, link to website author, title, description, etc..
You just have to place the following code in your theme header.php file before the <? Php wp_head ();?>:
5. Disable changing theme
When you create a WordPress site for a client, maybe you should make sure that it can not change the theme of the blog. For this you just have to paste the following code in the functions.php file: