(PHP 4 >= 4.1.0, PHP 5)
socket_connect — Initiates a connection on a socket
$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().
  
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.
      
   Returns TRUE on success or FALSE on failure. 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
FALSEwith an error Operation now in progress.