protected function replaceChild($string)
    {
        if (!empty($string)) {
            $newDocument = new Document($string);

            if ($newDocument->outertext !== $string) {
                throw new RuntimeException('Not valid HTML fragment');
            }
        }

        foreach ($this->node->childNodes as $node) {
            $this->node->removeChild($node);
        }

        if (!empty($string)) {
            $newNode = $this->node->ownerDocument->importNode($newDocument->getDocument()->documentElement, true);
            $this->node->appendChild($newNode);
        }

        return $this;
    }
protected function replaceChild($string)
    {
        if (!empty($string)) {
            $newDocument = new Document($string);

            if ($newDocument->outertext !== $string) {
                throw new RuntimeException('Not valid HTML fragment');
            }
        }

        foreach ($this->node->childNodes as $node) {
            $this->node->removeChild($node);
        }

        if (!empty($string)) {
            $newNode = $this->node->ownerDocument->importNode($newDocument->getDocument()->documentElement, true);
            $this->node->appendChild($newNode);
        }

        return $this;
    }
protected function replaceChild ( $ string ) { if ( ! empty ( $ string ) ) { $ newDocument = new Document ( $ string ) ; if ( $ newDocument -> outertext !== $ string ) { throw new RuntimeException ( 'Not valid HTML fragment' ) ; } } foreach ( $ this -> node -> childNodes as $ node ) { $ this -> node -> removeChild ( $ node ) ; } if ( ! empty ( $ string ) ) { $ newNode = $ this -> node -> ownerDocument -> importNode ( $ newDocument -> getDocument ( ) -> documentElement , true ) ; $ this -> node -> appendChild ( $ newNode ) ; } return $ this ; }
Replace child node

@param $string

@return $this

@throws RuntimeException
Replace child node