(PHP 5 >= 5.1.0, PHP 7)
libxml_get_last_error — Retrieve last error from libxml
libxml_get_last_error ( ) : LibXMLError|false
Retrieve last error from libxml.
Returns a LibXMLError object if there is any error in the buffer, false otherwise.
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https://www.php.net/manual/en/function.libxml-get-last-error.php