Technical stuff Requirements are like water. They're easier to build on when they're frozen.

I’ve ported the Curl library to Kohana, with kind permission of Alex Polski.
You can download it here: ported to Kohana.

<?php
// Did you notice the full-style opening PHP tags?

/**************************************************************
* Variable Naming conventions
*************************************************************
* – Use data type as prefix inside the name
* Eg: $sName instead of just $name
* – Try to use as descriptive names as possible
* [...]

Rasmus Lerdorf from Yahoo! talks at MySQL Conference & Expo 2007. Starts with the beginning of PHP and continues to more advances stuff.
Make sure you have the slides handy, too.

Spaghetti code, otherwise known as Drupal.

If you’re a PHP developer and you find it difficult to get used to all the insides of JavaScript, you might need PHP.JS, developed by Kevin van Zonneveld.