Support PHP generic services (#3269)

* Add php_generic_services option

* Generate PHP generic services

* Respect namespaces for generated PHP services

* Test PHP generated services

* Rename PHP generator service method doc comment function

* Correct phpdoc service method case

* Test namespaced PHP generic services

* Always use the FQCN for PHP generic service input/output

* Add generated_service_test to php test.sh

* Add php service test protos to CI

* Add php service files to php_EXTRA_DIST

* Use Interface suffix for php generic services

1 files changed, 18 insertions, 0 deletions

diff --git a/php/tests/proto/test_service.proto b/php/tests/proto/test_service.proto
new file mode 100644
index 00000000..a03dbc46
--- /dev/null
+++ b/php/tests/proto/test_service.proto
@@ -0,0 +1,18 @@
+syntax = "proto3";
+
+package foo;
+
+option php_generic_services = true;
+
+service Greeter {
+  rpc SayHello (HelloRequest) returns (HelloReply) {}
+  rpc SayHelloAgain (HelloRequest) returns (HelloReply) {}
+}
+
+message HelloRequest {
+  string name = 1;
+}
+
+message HelloReply {
+  string message = 1;
+}