Stuart Herbert looks today at some of the reasoning behind the push to move developers out to PHP5 - specifically that there's a lack of commercial-related discussion about what issues there might be.

What I'm not seeing are the commercial arguments to move to PHP 5 (/me points an accusing finger at the folks from Zend, with whom this discussion has been had before). Businesses will only make the move when there is something to gain from the effort, when the rewards of switching are more than the cost of doing nothing. So let's see if we can find some reasons to chivvy them along!

He breaks the rest of the post into sections:

• Why Move To PHP 5?
• What's The Cost Of Staying On PHP 4?
• What Are The Barriers To Moving To PHP 5?
• How Do I Cover My Costs Of Upgrading?
• What Are The Alternatives To PHP 5?
• Making The Move