Briefing Zend Knowledge

Which of the following PHP values may NOT be encoded to a JavaScript literal using PHP’s ext/j

Which of the following PHP values may NOT be encoded to a JavaScript literal using PHP’s
ext/json capabilities?

A.
‘Hello, world!’

B.
function(){ alert(“Hello, world!”); }

C.
array(‘Hello, world!’)

D.
array(‘message’ => ‘Hello, world!’)