Tell me you’ve never used PHP without telling me you’ve never used PHP.
It’s known for giving a complete stack trace, it’s nearest neighbours and their god damn grandkids the moment it so much as coughs up a warning. For the longest time it was notorious for doing this as the default error logging level.
I’m aware it’s cool to hate on PHP, but it has plenty of things to dislike without straight-up inventing nonsense.
The effect you are describing is “viral load”; the degree to which a virus is present in the body. This is an indicator of how infectious you are. It is especially important for people with HIV to see if they are “safe” or need their medication adjusted.
However, an at-home test will not be a good indicator of this. These have too many variables such as the site that was swabbed, time delays from the various biological functions, how well you used the kit and even variability in the kit itself.
To properly test for viral load, a blood test should be used. I worked with a company that tested for viral load via expelled breath, and while this was a good indicator of infectiousness y/n, and was faster than a PCR, it was not more accurate.