PHP4 and PHP 5 together ?

[Ptitoliv]

Hello everybody,

I have a box running on FreeBSD 5.2.1 with Apache 1.3.31 and php 4.3.8. 
I woud want to test php5 on the same system. When i try to install the 
port mod_php5, the system says me that there is a conflict with php4 
that it seems logical. But is there a solution using ports system in 
order to bypass this conflict in order to make work php 4 and php 5 
together ?

Thank you for your answers

Best regards,
Ptitoliv