/** * setElementValue * * @param DOMDocument $dom * @param DOMElement $node * @param mixed $value * * @return null|bool returns false if no value was set, else null; */ private function setElementValue(DOMDocument $dom, DOMElement $node, $value = null) { if ($value instanceof \SimpleXMLElement) { return $node->appendChild($dom->importNode(dom_import_simplexml($value), true)); } if ($value instanceof \DOMDocument) { return $node->appendDomElement($value->firstChild); } if ($value instanceof \DOMElement) { return $dom->appendDomElement($value, $node); } if (is_array($value) || $value instanceof \Traversable) { return $this->buildXML($dom, $node, $value); } if (is_int($value) || is_float($value)) { return $this->createText($dom, $node, (string) $value); } if (is_bool($value)) { return $this->createText($dom, $node, $value ? 'true' : 'false'); } if (is_string($value) || null === $value) { return $this->appendTextNode($dom, $node, (string) $value); } return false; }