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socket_getpeername

(PHP 4 >= 4.0.7, PHP 5)

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

说明

bool socket_getpeername ( resource $socket , string &$address [, int &$port ] )

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.

参数

socket

A valid socket resource created with socket_create() or socket_accept().

address

If the given socket is of type AF_INET or AF_INET6, socket_getpeername() will return the peers (remote) IP address in appropriate notation (e.g. 127.0.0.1 or fe80::1) in the address parameter and, if the optional port parameter is present, also the associated port.

If the given socket is of type AF_UNIX, socket_getpeername() will return the Unix filesystem path (e.g. /var/run/daemon.sock) in the address parameter.

port

If given, this will hold the port associated to address .

返回值

如果成功则返回 TRUE,失败则返回 FALSEsocket_getpeername() may also return FALSE if the socket type is not any of AF_INET, AF_INET6, or AF_UNIX, in which case the last socket error code is not updated.

注释

Note: socket_getpeername() should not be used with AF_UNIX sockets created with socket_accept(). Only sockets created with socket_connect() or a primary server socket following a call to socket_bind() will return meaningful values.


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