How can I parse HTML5 documents with DOMDocument in PHP?

Parsing HTML5 with DOMDocument in PHP

PHP's DOMDocument struggles to parse HTML5 documents, raising errors for tags like

and

DOMDocument Limitations:

Unfortunately, DOMDocument lacks support for parsing modern HTML5 tags. It adheres to a strict XML specification that does not recognize these tags.

Disabling Error Reporting:

While DOMDocument cannot be forced to parse HTML5, you can suppress the error messages it generates. Utilize libxml_use_internal_errors to disable error reporting temporarily:

$dom = new DOMDocument;
libxml_use_internal_errors(true);
$dom->loadHTML('...');
libxml_clear_errors();

This approach allows you to parse HTML5 without encountering errors. However, it's crucial to note that it doesn't truly enable HTML5 parsing. It merely masks the errors generated due to unrecognized tags.
Alternative Approaches:
For genuine HTML5 parsing, consider exploring other parsing libraries such as:

[HTML5Lib](https://github.com/html5lib/html5lib)
[PHP Simple HTML DOM Parser](https://sourceforge.net/projects/simplehtmldom/)

These libraries specifically handle HTML5 syntax, allowing you to modify attributes and values in your HTML5 code.
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