[WIP] PHP SDK integration #1133

Job	Run time
build-php (ubuntu-latest)	36s
build-go (ubuntu-latest)	22s
build-dotnet (ubuntu-latest)	25s
build-python (ubuntu-latest)	27s
build-ts (ubuntu-latest)	27s
build-java (ubuntu-latest)	27s
feature-tests-dotnet / test	1m 14s
feature-tests-go / test	2m 17s
feature-tests-java / test	2m 0s
feature-tests-php / test	2m 4s
feature-tests-python / test	1m 23s
feature-tests-ts / test	2m 5s
build-docker-images / build-go-docker-images / Build go docker image	2m 56s
build-docker-images / build-php-docker-images / Build php docker image	1m 11s
build-docker-images / build-java-docker-images / Build java docker image	2m 50s
build-docker-images / build-python-docker-images / Build py docker image	2m 8s
build-docker-images / build-dotnet-docker-images / Build cs docker image	1m 49s
build-docker-images / build-ts-docker-images / Build ts docker image	2m 42s
	27m 23s

Provide feedback