Using static class variables — in a heredoc

Question

I set up a class, which simplified is this:

class Labels {
    static public $NAMELABEL = \"Name\";
}

I successfully got the following code

Answer 1

Interpolation in heredocs works the same as in double quotes, so you can use curly brace ("complex") syntax.

However the parser does not recognize static class variables (see previous documentation). In order to refer to static class variables, you will need to set them locally as follows:

$label = Labels::$NAMELABEL;

echo <<<_END
    
       $label : 
       
    
_END;