XML parser error: entity not defined in all browsers
Recent browsers will mostly not load external DTDs
Entity '&' not defined on the xml file
& is not a valid Xml character by itself. Use & for &
XML Entity not defined in Chrome
Apparently using htmlspecialchars and htmlentities in tandem does the trick.
htmlspecialchars(htmlentities($value));
Problem with simpleXML and entity not being defined
HTML Encoding of Latin1 characters (like Ø, what that character describes) is what has broken the XML parser. If you're in control of the data, you need to escape it using XML style character encoding (Ø just happens to be & #216;)
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