do you mean running at the same time?
I was asked this a while back with php 4 and php5 and it wasn't possible then , but now its possible with apache supporting the correct directives.
you will need to use vhosts to specify the php version you want to use, if you haven't used vhosts before, read up on these first to enable them in wamp.
Then you will want the following...
<Virtu
Forum:
WampServer English