: London Pass

``` Notice that:

---

| Issue | Recommendation | |-------|----------------| | **Empty `

s or other wrappers** | If you want to also collapse empty wrappers after node removal, add an extra pass that removes empty elements (e.g.

//div[not(*)]

). |
| Other

c12‑like classes | If the class name can be part of a longer word, modify the contains()

 expression accordingly. |
| Large documents | For very large HTML files, you might want to switch to a streaming parser (e.g.,

XMLReader) instead of DOMDocument

 to avoid memory exhaustion. |
| UTF‑8 handling |

loadHTML() assumes ISO‑8859‑1 by default. If your document is UTF‑8, prepend a BOM or set mbinternalencoding('UTF-8')

 before loading. |

That’s it - drop the script into a file, replace

$html with your real markup, and you’ll get a clean copy that contains no c12` classes or heading tags.

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