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PHP has no destructors?

How did you get that information from this post? PHP has had destructors in some form since 4.x, and true class destructors in 5.x: http://php.net/manual/en/language.oop5.decon.php

My guess is he's from the C++ camp who tend to always suggest RAII as a replacement for 'finally' and RAII relies upon destructors.

Destructors aren't a good way to free resources in a garbage collected language.

Does ref-counting count as garbage collection?

I have yet to see a language that actually cleans up after itself. Many will attempt to free memory, but what about files, db connections, windows, sockets?

Have you heard about Racket's custodians? [1] http://docs.racket-lang.org/reference/eval-model.html#(part....

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