IS_INVALID_SOCKET 223 ext/sockets/sockets.c if (IS_INVALID_SOCKET(sock)) { IS_INVALID_SOCKET 260 ext/sockets/sockets.c if (IS_INVALID_SOCKET(out_sock)) { IS_INVALID_SOCKET 1104 ext/sockets/sockets.c if (IS_INVALID_SOCKET(php_sock)) {