如何在PHP（DOM选择器）中按类名获取元素？

Question

Apparently, in PHP, there are a few DOM selectors like getElementById and getElementsByTagName but not the class selector, getElementsByClassName that is in javaScript, but strangely, not in PHP. Now, I have made a project that has to use class selectors in order to locate the elements in that particular page's DOM, but nethertheless, considering there's no getElementsByClassName method in PHP; I can't complete my project correctly.

So, how is it possible to apply "get elements by class name" in the PHP Document Object Model(DOM)?

Any help would be appreciated!

Answer 1

Use DOMXPath with a custom XPath query. See How can I find an element by CSS class with XPath?