On a server, there is possibility to have more than one compiled php version. If you wish to use a php version other than the default one, you can use the .httaccess file for this purpose.
If the default php version on a server is set to php 5, then by default, all domains will use php5. If a certain application installed on a domain runs only under php4, thenit is necessary that the domain uses php4
Open .htaccess by any suitable editor. Put the following code into it:
Server without suphp enabled
AddType application/x-httpd-php4 .php .htm .html
Server with suphp enabled
AddHandler application/x-httpd-php4 .php .htm .html
In the same way, you can enable other php versions if they are installed/compiled over the server.
Looking for quality web hosting? Look no further than Arvixe Web Hosting!