--TEST-- Test socket_addrinfo_explain() --SKIPIF-- AF_INET, 'ai_socktype' => SOCK_DGRAM, )); $result = socket_addrinfo_explain($addrinfo[0]); // Musl sets ai_canonname even if AI_CANONNAME is not specified. unset($result['ai_canonname']); var_dump($result); echo "Done"; --EXPECTF-- array(5) { ["ai_flags"]=> int(%d) ["ai_family"]=> int(2) ["ai_socktype"]=> int(2) ["ai_protocol"]=> int(%d) ["ai_addr"]=> array(2) { ["sin_port"]=> int(2000) ["sin_addr"]=> string(9) "127.0.0.1" } } Done