Hi Internals, Obviously we can't use constants or functions directly in strings using variable parsing, I assume because it lacks the easily detectable $.
However, we _can_ use methods because the object variable has the $, which I assume is the reason methods work and functions don't. I feel like it's something that _could_ have been added when dynamic access of static members support was added in 5.3.0, but maybe it was overlooked or decided against? Consider: ``` <?php $a = new A(); echo " {A::$static_property} \n"; // doesn't work (unless $static_property is a variable) echo " {$a::$static_property} \n"; // works echo " {A::static_method()} \n"; // doesn't work (just text) echo " {$a::static_method()} \n"; // works echo " {A::constant} \n"; // doesn't work echo " {$a::constant} \n"; // doesn't work either, but why? ?> ``` Also, as a side note, why does this hack below work? It seems like something that would use `eval()`, but doesn't. Take a look: https://3v4l.org/aPCSD I found it at the bottom of the manual entry for Strings[1]. Not something I would use, but it's interesting to see. Thanks, Peter [1]: https://www.php.net/manual/en/language.types.string.php#91628