Initiates a connection on a socket

说明

bool socket_connect ( resource $socket , string $address [, int $port = 0 ] )

Initiate a connection to address using the socket resource socket, which must be a valid socket resource created with socket_create().

参数

socket
address: The address parameter is either an IPv4 address in dotted-quad notation (e.g. 127.0.0.1) if socket is AF_INET, a valid IPv6 address (e.g. ::1) if IPv6 support is enabled and socket is AF_INET6 or the pathname of a Unix domain socket, if the socket family is AF_UNIX.
port: The port parameter is only used and is mandatory when connecting to an AF_INET or an AF_INET6 socket, and designates the port on the remote host to which a connection should be made.

返回值

成功时返回 TRUE，或者在失败时返回 FALSE. The error code can be retrieved with socket_last_error(). This code may be passed to socket_strerror() to get a textual explanation of the error.

Note:
If the socket is non-blocking then this function returns FALSE with an error Operation now in progress.

参见

socket_bind() - Binds a name to a socket
socket_listen() - Listens for a connection on a socket
socket_create() - Create a socket (endpoint for communication)
socket_last_error() - Returns the last error on the socket
socket_strerror() - Return a string describing a socket error