See www.zabbix.com for the official Zabbix site.
PHP versions
From Zabbix.org
PHP versions in distributions
| Distro | Release | PHP version |
|---|---|---|
| Debian | oldStable (5.0) | 5.2.6 |
| Debian | stable (6.0) | 5.3.3 |
| Ubuntu server | 10.04 LTS | 5.3.2 |
| Ubuntu server | 10.10 | 5.3.3 |
| Ubuntu server | 11.04 | 5.3.5 |
| openSUSE | 11.3 | 5.3.3 |
| openSUSE | 11.4 | 5.3.5 |
| RHEL5 | 5.5 | 5.1.6 (5.3.3 available as a separate package) |
| RHEL6 | 6.1 | 5.3.3 |
| Slackware 12 | 12.2 | 5.2.8 |
| Slackware 13 | 13.37 | 5.3.6 |
| Gentoo | 2011-08-26 | 5.3.6 stable, 5.3.8 testing |
