/**
* 从内容里提取所有的脚本链接
* @param $content
* @return array
*/
function extractScriptUrls($content)
{
$this->domParser->load($content);
$scriptNodes = $this->domParser->find('script');
return array_map(function ($scriptNode) {
return $scriptNode->getAttr('src');
}, $scriptNodes);
}
