Parses tcp://host:port or host:port, as stream_socket_client and fsockopen take. Port 25 is refused: Workers block it, so a park there would wait forever.
tcp://host:port
host:port
stream_socket_client
fsockopen
Parses
tcp://host:portorhost:port, asstream_socket_clientandfsockopentake. Port 25 is refused: Workers block it, so a park there would wait forever.