Is there a way to check whether a given variable is a reference in php?
I.e.
$foo="hi";
$bar=&$foo;
if (is_ref($bar)) echo "ref";
Corollary question: What happens to references after a cycle of being
stored in and retrieved from the $_SESSION? Do I get copies now, or do
I still have a reference?
Also, does PHP have the notion of class variables as in Java? I.e. a
shared variable between all objects of a given class? It appears that
we only have what would be called 'instance variables' in Java. Is this
correct?
Thanks
Alok
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