PHP 5 directions needed

[eluser]easylancer[/eluser]
Can someone direct me to where the difference stands between PHP 5 and PHP 5, what are the major differences and where can i learn PHP 5. Currently i code in PHP 4 even though my server supports PHP5 but i am unable to use it to the full as i don't know the syntaxes for PHP5.

[eluser]Michael Wales[/eluser]
PHP5 Overview
What's New in PHP5 and PHP6

[eluser]easylancer[/eluser]
Thanks for your quick reply walesmd, what would be a good book to learn OOP PHP5? for instance i don't know what deconstructor is used for or call and so forth, where would be a good place to learn all these?

[eluser]Michael Wales[/eluser]
This is a good article: Coming Soon to a Web Server near You

Another great article on zend: What's new in PHP5?

There are a lot of books out there for PHP5 but most of them will bore you and aren't worth the money given your background in PHP4 already.