PHP is probably the most used scripting language behind the internet. So taking a hint from last weeks list, we point to Smashing Magazine and their Advanced PHP Tips. Don't worry if you're a beginner ...

According <a href="http://www.tiobe.com/index.php/content/paperinfo/tpci/index.html">Tiobe's Index</a>, PHP is the fourth most-popular computing language and I'd bet ...