(PHP 7 >= 7.4.0, PHP 8)
ReflectionReference::fromArrayElement — Create a ReflectionReference from an array element
$array, int |string $key): ? ReflectionReference Creates a ReflectionReference from an array element.
Returns a ReflectionReference instance if
$array[$key] is a reference, or null otherwise.
If array is not an array , or key
is not an int or string , a TypeError is thrown.
If $array[$key] does not exist,
a ReflectionException is thrown.