note 129768 added to class.domdocument

While DOMDocument can technically be used to parse HTML, it is not ideal for HTML documents and is better suited for processing well-formed XML. One of the primary issues with using DOMDocument for HTML is its strict handling of special characters, such as the ampersand (&). DOMDocument requires that ampersands be escaped as &, which is in line with XML standards but can be counterintuitive for handling real-world HTML, where raw & characters are commonly found, especially in URLs and text. This behavior stems from the underlying XML-based parser (libxml), which treats HTML with the same strictness as XML. This problem has been reported as far back as 2001, yet the same parsing errors continue to occur when using DOMDocument on HTML documents today. A common workaround developers use is to suppress the error reporting from DOMDocument, particularly when parsing errors like unescaped ampersands occur. However, suppressing these errors is not recommended, especially in production environments, as it can hide important issues and pose potential security risks. Ignoring or suppressing errors can leave warnings unnoticed, which may result in vulnerabilities if not properly addressed. For these reasons, it's advisable to use DOMDocument primarily for XML documents, or to consider more appropriate libraries when working with HTML to avoid these issues. theCoder / MV ---- Server IP: 45.112.84.4 Probable Submitter: 80.90.5.137 (proxied: 104.28.225.130) ---- Manual Page -- https://php.net/manual/en/class.domdocument.php Edit -- https://main.php.net/note/edit/129768 Del: integrated -- https://main.php.net/note/delete/129768/integrated Del: useless -- https://main.php.net/note/delete/129768/useless Del: bad code -- https://main.php.net/note/delete/129768/bad+code Del: spam -- https://main.php.net/note/delete/129768/spam Del: non-english -- https://main.php.net/note/delete/129768/non-english Del: in docs -- https://main.php.net/note/delete/129768/in+docs Del: other reasons-- https://main.php.net/note/delete/129768 Reject -- https://main.php.net/note/reject/129768 Search -- https://main.php.net/manage/user-notes.php