🔨 issue: ‏I would avoid messing with the ini_set and time limit, is a bit out of scope for this script. I'm fine with setting the error_reporting tho.

I agree, but it think its vital to actually see errors (for example php-zip mod not installed/activated). Maybe you can implement @init_set().

The time limit should be increased tho, because with the default limit of 30sec. some systems will not complete all the benchmarks. Here are some numbers as an example:
my raspberry pi 2 can only do 5 benchmarks in 30sec.
my rapsberry pi 3 can only do 10 benchmarks in 30sec.
total duration on my amd 5700G/win10/xampp/php8.2: 16sec.
total duration on my all-inkl.com server: 5sec.

🔨 issue: ‏This cannot be hardcoded, it has to create a temp file with a builtin function (like https://www.php.net/manual/en/function.tmpfile.php) and check for existance before using it.

🔨 issue: ‏ Each test has to be atomic. It must not share anything with other tests.

Thx for all of your feedback & thx for implementing my suggestions.