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(PHP 4 >= 4.1.0, PHP 5, PHP 7, PHP 8)
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
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
A Socket instance 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.
成功时返回 true， 或者在失败时返回 false。 socket_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.
| 版本 | 说明 |
|---|---|
| 8.0.0 |
现在 socket 是 Socket 实例，
之前是 resource。
|
注意:
socket_getpeername() should not be used with
AF_UNIXsockets 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.
注意:
For having socket_getpeername() to return a meaningful value, the socket it is applied upon must of course be one for which the concept of "peer" makes sense.
