I needed to send an email through an authenticated SMTP server. I found the snippet on the PHP website to do the trick.

Generate a random number or string in PHP.

A small recursive php function to determine the size of a directory by adding all it's contents together and returning them as an integer.

Using the extract() Functio

Mass email list of email addresses from a mysql db table.

Pull items from a mysql db table and display in the following format-
item1, item2, item3

In the example code, the query will return all items that have the color "red" specified in the db.

Display contents of a folder, see comments in code.

Generate multi select box from data in db, then when submitted, each selection is written to a db table as it's own record, each tied together by a common record id.

Get the count of records from DB

With this function you can calculate the age of a person

Example:
echo "Age is: " . age("1984-07-05");

Result will be (23 Feb 2005) = "Age is: 20"