PHP.net - zend.script_encoding states:
This value will be used unless a
declare(encoding=...)directive appears at the top of the script. When ISO-8859-1 i[n]compatible encoding is used, bothzend.multibyteandzend.script_encodingmust be used.
What are the supported values for zend.script_encoding? Are the supported encodings hard-coded or configurable?
Also, if we do not specify any value for zend.script_encoding, what's the default assumed?
Does behavior vary between different engines/platforms?