Send email (plaintext, attachments, HTML mail, even bulk mail) using PHP and the wonderful HTML Mime Mail class. More info

One of the most important advantages of creating a database driven sites is the ability to perform search queries on the database. Could you imagine searching WeberDev.com if it was written using plain HTML? Not that it couldn't be done, just we would have to rebuild an index of all the pages every time someone adds an example, article and so on. More info

One of the most basic things you can do with any programming language is create and manipulate data structures. These structures may be transient - in-memory variables like arrays or objects - or more permanent - disk-based entities like files or database tables; however, the ability to create, modify and erase them in a convenient and consistent manner is of paramount importance to any programmer. More info

I'm posting this to clear up how to find the PEAR path on most servers, and then at the end are instructions how to use PEAR in your PHP programs. More info

Håvard Eide provides an excellent tutorial / discussion of PHP 5. More info

Add search capabilities to your site using the popular open source tools PHP3 and ht://Dig More info