socket_getsockname
  (PHP 4 >= 4.1.0, PHP 5)
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
  
 
 
  설명
  
   bool socket_getsockname
    ( resource $socket
   , string &$addr
   [, int &$port
  ] )
  Note: 
   
    socket_getsockname() should not be used with
    AF_UNIX sockets created with socket_connect().
    Only sockets created with socket_accept() or a primary
    server socket following a call to socket_bind() will return
    meaningful values.
   
  
  
 
  인수
  
   
    
     - 
socket 
     - 
      
       A valid socket resource created with socket_create() 
       or socket_accept().
      
      
    
    
     - 
addr 
     - 
      
       If the given socket is of type AF_INET
       or AF_INET6, socket_getsockname()
       will return the local 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_getsockname() will return the Unix filesystem
       path (e.g. /var/run/daemon.sock) in the
       address parameter.
      
      
    
    
     - 
port 
     - 
      
       If provided, this will hold the associated port.
      
      
    
   
  
  
 
  반환값
  
   성공 시 TRUE를, 실패 시 FALSE를 반환합니다. socket_getsockname() 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.