PHP 4 is only partially supported in FreeNATS version 1. Most of the functionality will work BUT if you try and use any PHP-5-only functionality then this will fail and may result in parse errors for the test scripts etc.
PHP-5-only functionality includes:
- SMTP delivery of email (standard inbuilt mail() functionality works)
- Nodescript scripts for Posix pushing (the FreeNATS system itself i.e. the receiving of the push is fine but the nodescript script needs to run in PHP5 for the push to work correctly)