The function parses the XML document in the given file.
filename
The path to the XML file. The file is accessed in read-only mode.
mode
This optional parameter can be used to change the behavior of this function.
You can use one of the following constants for it: DOMXML_LOAD_PARSING (default), DOMXML_LOAD_VALIDATING or DOMXML_LOAD_RECOVERING. You can add to it also DOMXML_LOAD_DONT_KEEP_BLANKS, DOMXML_LOAD_SUBSTITUTE_ENTITIES and DOMXML_LOAD_COMPLETE_ATTRS by bitwise or.
error
If used, it will contain the error messages.
error
must be passed in by reference.