Explore weird register_shutdown_function behavior #1099
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cc @bgrgicak
This doesn't solve the issue we've seen with WooCommerce. While trying to set up a test case for that, I ran into another issue where doing anything asynchronous in the shutdown handler somehow breaks the stdout output stream. The PHP code is still running, though, and is capable of writing files. Something must be off with the
wasm_sapi_request_shutdown
C function.