使用 DOM 解析器，如 SimpleXML 将 HTML 代码拆分为节点，并遍历节点构建数组.

Use a DOM parser like SimpleXML to split the HTML code into nodes, and walk through the nodes to build the array.

对于损坏/无效的 HTML，SimpleHTMLDOM 更宽松(但它不是内置的).

For broken/invalid HTML, SimpleHTMLDOM is more lenient (but it's not built in).