29.중복 조건식 통합 Consolidate Conditional Expression

class Security {
 
   private $_isHttps = true;
   private $_isAdmin = true;
   private $_totalLoginsPerDay = 19;
   .
   .
   .
 
  public function can_upload_file()
  {
      if($this->_isHttps == false) return 0;
      if($this->_isAdmin == false) return 0;
      if($this->_totalLoginsPerDay > 100) return 0;
 
      return 1;  
  }
}
 
$login = new Security();
echo $login->can_upload_file();

class Security {
 
   private $_isHttps = true;
   private $_isAdmin = true;
   private $_totalLoginsPerDay = 19;
   .
   .
   .
  
  public function can_upload_file()
  {
    return $this->_isAdmin and $this->isHttps and ($this->totalLoginsPerDay <= 100);
  }
}
$login = new Security();
echo $login->can_upload_file();