I've noticed that 1&1 Hosting (and perhaps other companies as well) offer PHP3, PHP4, and PHP5 on their servers.
I imagine to do this we'd have to install all three as separate PHP installs, not as part of HTTP.
If we're to do this, do each of our clients have to then specify which version of PHP they want on each script, or does anyone have a simple way to set this as a default, perhaps somehow in httpd.conf, or perhaps in a separate PHP file they could install in their own directory?
Thanks.
Jeff