code: public function bind($sUser, $sPassword) : Ldap
  	{
  		return $this->_bConnected = ldap_bind($this->_rConnect, $sUser, $sPassword);
  		return $this;
  	}
docs: Authentification in Ldap
  
  @access public
  @param  string $sUser
  @param  string $sPassword
  @return \Venus\lib\Ldap