I just build php 8.0.15 from source with ./configure and make.
It ran through without errors, but I can't find the generated php binary.
Where is it?
The compiled binaries will be available in the ./sapi directory. To immediately run the PHP CLI, for example, call the ./sapi/cli/php binary.
/sapi/cli/php but you mean location/of/build/folder/sapi/cli/php