skywalking Directive => Local Value => Master Value skywalking.enable => Off => Off skywalking.version => 8 => 8 skywalking.app_code => hello_skywalking => hello_skywalking skywalking.authentication => no value => no value skywalking.grpc => 127.0.0.1:11800 => 127.0.0.1:11800 skywalking.grpc_tls_enable => 0 => 0 skywalking.grpc_tls_pem_root_certs => no value => no value skywalking.grpc_tls_pem_private_key => no value => no value skywalking.grpc_tls_pem_cert_chain => no value => no value skywalking.log_enable => 0 => 0 skywalking.log_path => /tmp/skywalking-php.log => /tmp/skywalking-php.log