The PHPEveryDay.com website has posted some more tutorials recently - here's the list:

• PHP Network: Pinging Remote Hosts
• Web Content: Crawl Image Source a Web Page
• Web Content: Getting All URL in a Web Page
• Web Content: Reading Other Web Page
• Web Content: Forcing Browser Downloads
• Web Content: Calculating Script Execution Times
• Web Content: Protecting E-mail Address
• Web Content: Changing URL Text become Active URL

Check out the rest of the site for even more great tutorials and articles.