If you have a Facebook page for your website or blog, you might want to display how many fans you have. This snippet will help you to get your Facebook fan count, in full text. Don’t forget to add your page ID on line 2.
When used, Microsoft Word creates lots of tags: font, span, style, class… These tags are useful inside Word itself, but when you paste a text from Word into a webpage, you’ll end up with lots of useless tags. Here’s a very handy function to remove all Word HTML tags.
In wordpress, if you want to auto convert all URLs in your string into clickable hyperlinks, you can actually do it using the built-in function make_clickable(). If you need to do that outside of wordpress, you can refer to the function’s source code at wp-includes/formatting.php
When sending emails, you might want to be able to find out if your email has been read. Here’s a very interesting snippet which log the IP address which read your email, as well as the actual date and time.