note 129024 added to function.register-shutdown-function

> Shutdown functions run separately from the time tracked by max_execution_time. That means even > if a process is terminated for running too long, shutdown functions will still be called. > Additionally, if the max_execution_time runs out while a shutdown function is running it will not be > terminated. This does not appear to be true in our testing, specifically "Additionally, if the max_execution_time runs out while a shutdown function is running it will not be terminated". For example: <?php set_time_limit(5); register_shutdown_function(function() { $start = time(); for($i = 0; $i < 40; $i++) { echo "Run 1: $i\n"; while(1) { $elapsed = time() - $start; if($elapsed > $i) { break; } } } }); ?> This will print out: Run 1: 0 Run 1: 1 Run 1: 2 Run 1: 3 Run 1: 4 Run 1: 5 Then it will die with: Execution took longer than 5 seconds, sent SIGTERM and terminated If you register multiple shutdown functions and an earlier one exceeds the execution time the later ones will _not_ be run. If you need your shutdowns to have unlimited time (like the docs suggest it works) one solution might be to register a shutdown function like this early in your code: <?php register_shutdown_function(function() { set_time_limit(0); }); ?> So that you give yourself unlimited time in your subsequent shutdown functions. See an example here: https://www.tehplayground.com/wJLtMi3Z5c1sTi9Y (Note, 5 seconds is the max you can set on this website. If you remove the first shutdown function you it will be killed after 3 seconds). ---- Server IP: 45.112.84.4 Probable Submitter: 45.91.157.134 (proxied: 74.133.4.48) ---- Manual Page -- https://php.net/manual/en/function.register-shutdown-function.php Edit -- https://main.php.net/note/edit/129024 Del: integrated -- https://main.php.net/note/delete/129024/integrated Del: useless -- https://main.php.net/note/delete/129024/useless Del: bad code -- https://main.php.net/note/delete/129024/bad+code Del: spam -- https://main.php.net/note/delete/129024/spam Del: non-english -- https://main.php.net/note/delete/129024/non-english Del: in docs -- https://main.php.net/note/delete/129024/in+docs Del: other reasons-- https://main.php.net/note/delete/129024 Reject -- https://main.php.net/note/reject/129024 Search -- https://main.php.net/manage/user-notes.php