But isn't
~/
always available to all users?
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@griffin In windows permissions aren't really a problem, but Linux is very tight when it comes to perms, so when I looked at the instructions to download and just run it, then it must be running from a windows IIS, not Linux, because as rg305 said, PHP doesn't have permission outside the html directory, soooo, I'm going to try and use another location, and see if that works.
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Not on a GoDaddy shared hosting instance from a web context, unfortunately.
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Oh yes it does 
https://griffin.software/certsage.php
That's the exact same file to the byte that you downloaded. No errors.
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Then you have to code around it OR THROUGH IT!
Try various locations within the code until one works!
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I'm running it on 2 of my own hosting servers, in the basement lol, running headless Ubuntu, Apache, and PHP 7.3, one is the live site and has the FQDN DNS records pointing to my WAN IP, and the other is LAN only.
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Oh, I did my friend. They have that locked down tight.
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Is that windows or Linux?
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I like it. I'm always curious how things will go in different environments. 
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I'm assuming you didn't use:
./
for security reasons and that path is not useable.
hmm...
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Linux, Apache.
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./ is public_html (and thus would put private keys into public space).
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I think cPanel instances have more lax permissions for user directories due to controlling the more sensitive bits.
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Hold the phone, I just remembered, my PHP config does allow access outside the html directory, because I also have websites located in /var/www/site1 /var/www/site2, etc etc, and use apache document rewrites to point to those locations.
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I'm assuming the directory write permissions aren't allowed for PHP's user in /var/www.
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How about creating a path in ./ that is protected from web access?
Or reviewing ~/ some more...
Using getcwd() might help.
How about creating security through obscurity?
Create a long random variable and use that as the directory name (so 1980s!).
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All interesting options. 
I must get some sleep now, but I'll check back in the morning.
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Ok, g'night,,, I'll keep trying different locations
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Let me know how it turns out.
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It WORKED!!!!!
I created a directory in /var/www called sage-data and chowned it to www-data:www-data changed the location variable in the script and now it works fine, it seems that PHP requires the www-data:www-data user and group for access outside the html directory, now I can deploy it to my live site.
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