Detecting https for sure?

[phat_hip_prog]

Hi, i'm wanting to ensure certain areas of a site are using 'https' only. This is what i've been playing with:

if (isset($_SERVER['HTTPS']))
{
if (strcmp($_SERVER['HTTPS'], 'on') == 0)
{
	print "HTTPS is ON<br>";
}
else
{
	print 'https: '.$_SERVER['HTTPS'].'<br>';
}
}
else
{
print 'HTTPS not exist<br>';
}

 

Q1: Will this always give a true result if https is being used.

Q2: How to handle if 'register_globals = Off'  in php.ini?

 

Any other suggestions or considerations?

 

Also a slightly separate topic (only answers pls. I'll also be looking into elsewhere!), how to have a different 'RewriteBase' in '.htaccess' if using 'https', since at current my host uses different path / address for (cheap) https. (And before I have it set up correctly i'd like to be able to have it handled automatically)

[phat_hip_prog]

No ideas... or do you think this works well enough?