In PHP does max_execution_time affect shutdown functions that are run through a register_shutdown_function() call?

I have a shutdown function registered using regist开发者_运维技巧er_shutdown_function() that takes a long time to complete. Will PHP's max_execution_time cause PHP to terminate this function or will it run until it completes or errors out?

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It will run to completion.

http://us2.php.net/manual/en/function.register-shutdown-function.php#33575