If one domain / script on your hosting account required a different version of php doing the following!
To change to version 5.2 of php add the following to a .htaccess file in the folder where the domain / script exists :
<IfModule lsapi_module>
AddHandler application/x-httpd-alt-php52___lsphp .php .php5 .phtml
</IfModule>
To change to version 5.3 of php add the following to a .htaccess file in the folder where the domain / script exists :
<IfModule lsapi_module>
AddHandler application/x-httpd-alt-php53___lsphp .php .php5 .phtml
</IfModule>
To change to version 5.4 of php add the following to a .htaccess file in the folder where the domain / script exists :
<IfModule lsapi_module>
AddHandler application/x-httpd-alt-php54___lsphp .php .php5 .phtml
</IfModule>
To change to version 5.5 of php add the following to a .htaccess file in the folder where the domain / script exists :
<IfModule lsapi_module>
AddHandler application/x-httpd-alt-php55___lsphp .php .php5 .phtml
</IfModule>
To change to version 5.6 of php add the following to a .htaccess file in the folder where the domain / script exists :
<IfModule lsapi_module>
AddHandler application/x-httpd-alt-php56___lsphp .php .php5 .phtml
</IfModule>
To change to version 7.0 of php add the following to a .htaccess file in the folder where the domain / script exists :
<IfModule lsapi_module>
AddHandler application/x-httpd-alt-php70___lsphp .php .php5 .phtml
</IfModule>
To change to version 7.1 of php add the following to a .htaccess file in the folder where the domain / script exists :
<IfModule lsapi_module>
AddHandler application/x-httpd-alt-php71___lsphp .php .php5 .phtml
</IfModule>
To change to version 7.2 of php add the following to a .htaccess file in the folder where the domain / script exists :
<IfModule lsapi_module>
AddHandler application/x-httpd-alt-php72___lsphp .php .php5 .phtml
</IfModule>
As soon as these lines are added to the .htaccess file then that folder will then use the defined version of php !