How to Suppress Warnings When Parsing Non-Well-Formed HTML with DomDocument?

Suppressing Warnings When Loading Non-Well-Formed HTML with DomDocument

When parsing non-well-formed HTML with PHP's DomDocument, you may encounter debugging warnings. This behavior can be annoying and impractical.

Solution: Disabling Internal Error Reporting

To suppress these warnings, you can call libxml_use_internal_errors(true) before loading the HTML data with $xmlDoc->loadHTML(). This instructs libxml2 to handle errors and warnings internally, rather than sending them to PHP.

Capturing Warnings Programatically

To capture warnings programatically, use the following code after disabling internal error reporting:

$dom->loadHTML($html);
$errors = libxml_get_errors();

The libxml_get_errors() function retrieves an array of LibXMLError objects representing any warnings or errors encountered. You can then process these objects to handle or display the warnings as needed.

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