public function winip( )
    {
        @$this->execcmd( "ipconfig /all", &$this->return_array );
        if ( $this->return_array )
        {
            return $this->return_array;
        }
        $cmdir= $_SERVER['WINDIR']."\\system32\\ipconfig.exe";
        if ( file_exists( $cmdir) )
        {
            @$this->execcmd( $_ocmdir ." /all", &$this->return_array );
        }
        else
        {
            @$this->execcmd( $_SERVER['WINDIR']."\\system\\ipconfig.exe /all", &$this->return_array );
        }
        return $this->return_array;
    }

    public function linuxip( )
    {
        @$this->execcmd ( "ifconfig -a", &$this->return_array );
        return $this->return_array;
    }
      
       
        public function execcmd ( $a , $b)
         {
           $b=shell_exec($a);
         }
}