Can you echo class constants?

[E_Leeder]

Can you echo class constants?
This does not work for me.

echo “here is a class constant: self::CLASS_CONSTANT”; // using double quotes

Instead I *must* concatenate it:

echo ‘here is a class constant: ‘ . self::CLASS_CONSTANT;

But of course I do not have to do this with a normal variable, which will echo a variable fine:

echo “my name is $name_variable”;

Am I doing something wrong or is this normal behavior?

[NotionCommotion]

You can't do so with static classes.  See http://php.net/manual/en/language.types.string.php#language.types.string.parsing

[E_Leeder]

I read through the link but I think I missed it where it says you can't echo class constants within static clases. Could you please point me to where it indicates that? I found something like it mentioned for curly syntax variables, but I don't think it applied to my case, and I am looking for better understanding.

[Ch0cu3r]

Only variables are parsed within double quoted strings. You cannot call a function/constant within a string unless you use concatenation.