So, When Should I Upgrade to PHP 5?
If you have a development area, you can download a beta version of PHP 5 and install it. As with all beta releases, there will be bugs as well as items not yet implemented, and even items that are currently implemented that may end up being scrapped before the final release. If you are intrigued by the new featured listed in this chapter, I encourage you to follow the betas as they evolve, installing and testing with each one. You will then be ready to immediately switch to PHP 5 in a production environment, when the PHP Developers Group indicates the first nonbeta is ready for action.
Backward Compatibility
The changelog and PHP manual always indicates when a new implementation will cause problems in previous ...
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