    socket_getpeername (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   Description socket_getpeername(Socket $socket, string &$address, int &$port = null): bool  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.    Parameters
  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. 3076365585 or 8b7c:f320:99b9:690f:4595:cd17:293a:c0691) 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.      Return Values  Returns true on success or false on failure. 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.    Changelog    Version Description     8.0.0  socket is a Socket instance now; previously, it was a resource.       Notes 
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.   
Note: 
 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.     See Also
 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_last_error() - Returns the last error on the socket socket_strerror() - Return a string describing a socket error   


    
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