original_string: function propertyExists($attribute, $property) {
      return array_key_exists($attribute, $this->__attributes)
          && array_key_exists($property,  $this->__attributes[$attribute]);
    }
code: function propertyExists($attribute, $property) {
      return array_key_exists($attribute, $this->__attributes)
          && array_key_exists($property,  $this->__attributes[$attribute]);
    }
code_tokens: function propertyExists ( $ attribute , $ property ) { return array_key_exists ( $ attribute , $ this -> __attributes ) && array_key_exists ( $ property , $ this -> __attributes [ $ attribute ] ) ; }
docstring: `propertyExists` determines if an attribute property has been set.
  
  @param   string  $attribute  attribute name
  @param   string  $property   property name
  
  @api     public
  @return  boolean
docstring_tokens: propertyExists determines if an attribute property has been set .