socket_create_listen — Opens a socket on port to accept connections
socket_create_pair — Creates a pair of indistinguishable sockets and stores them in an array
socket_create — 创建一个套接字(通讯节点)
socket_get_option — Gets socket options for the socket
socket_getpeername — Queries the remote side of the given socket which may either result in host/port or in a Unix filesystem path, dependent on its type
socket_getsockname — Queries the local side of the given socket which may either result in host/port or in a Unix filesystem path, dependent on its type
socket_import_stream — Import a stream
socket_last_error — Returns the last error on the socket
socket_listen — Listens for a connection on a socket
socket_read — Reads a maximum of length bytes from a socket
socket_recv — Receives data from a connected socket
socket_recvfrom — Receives data from a socket whether or not it is connection-oriented
socket_recvmsg — Read a message
socket_select — Runs the select() system call on the given arrays of sockets with a specified timeout
socket_send — Sends data to a connected socket
socket_sendmsg — Send a message
socket_sendto — Sends a message to a socket, whether it is connected or not
socket_set_block — Sets blocking mode on a socket resource
socket_set_nonblock — Sets nonblocking mode for file descriptor fd
socket_set_option — Sets socket options for the socket
socket_shutdown — Shuts down a socket for receiving, sending, or both
socket_strerror — Return a string describing a socket error