private function propertiesToXml() {
        $properties = array();

        foreach (self::$properties[get_class($this)] as $name => $info) {
            if($info['attribute']) {
                continue;
            }

            if (!array_key_exists($name, $this->values)) {
                continue;
            }

            $value = $this->values[$name];

            if(!array_key_exists('elementName', $info) && !array_key_exists('attributeName', $info)) {
                $properties[] = self::encodeValueXml($value);
            }
            else {
                if ($info['unbound']) {
                    foreach($value as $property) {
                        $properties[] = self::propertyToXml($info['elementName'], $property);
                    }
                } else {
                    $properties[] = self::propertyToXml($info['elementName'], $value);
                }
            }
        }

        return join('', $properties);
    }
private function propertiesToXml() {
        $properties = array();

        foreach (self::$properties[get_class($this)] as $name => $info) {
            if($info['attribute']) {
                continue;
            }

            if (!array_key_exists($name, $this->values)) {
                continue;
            }

            $value = $this->values[$name];

            if(!array_key_exists('elementName', $info) && !array_key_exists('attributeName', $info)) {
                $properties[] = self::encodeValueXml($value);
            }
            else {
                if ($info['unbound']) {
                    foreach($value as $property) {
                        $properties[] = self::propertyToXml($info['elementName'], $property);
                    }
                } else {
                    $properties[] = self::propertyToXml($info['elementName'], $value);
                }
            }
        }

        return join('', $properties);
    }
private function propertiesToXml ( ) { $ properties = array ( ) ; foreach ( self :: $ properties [ get_class ( $ this ) ] as $ name => $ info ) { if ( $ info [ 'attribute' ] ) { continue ; } if ( ! array_key_exists ( $ name , $ this -> values ) ) { continue ; } $ value = $ this -> values [ $ name ] ; if ( ! array_key_exists ( 'elementName' , $ info ) && ! array_key_exists ( 'attributeName' , $ info ) ) { $ properties [ ] = self :: encodeValueXml ( $ value ) ; } else { if ( $ info [ 'unbound' ] ) { foreach ( $ value as $ property ) { $ properties [ ] = self :: propertyToXml ( $ info [ 'elementName' ] , $ property ) ; } } else { $ properties [ ] = self :: propertyToXml ( $ info [ 'elementName' ] , $ value ) ; } } } return join ( '' , $ properties ) ; }
Returns an XML string of the object's properties.

@returns string The XML.
Returns an XML string of the object s properties .