Online PHP editor | perf for gXCVc

<?php // Calling it supervisor because it maintains an internal state, // Receiver because it receives messages. $supervisor = makeReceiver(); // ...(243) The internal id, optional // Now we're messaging into that state. Here, we're passing commands. $supervisor->send(['addUser','amy']); $supervisor->send(['addUser','bob']); $supervisor->send(['addUser','ellen']); $supervisor->send(['addUser','joe']); $supervisor->send(['addUser','mark']); $supervisor->send(['addUser','janice']); // Nope $supervisor->send(['addUser','franke']); // Sorry, too many // This is a pointer to what's been yielded in the generator. // It is now an Iterator (next, rewind). $users = $supervisor->send(_m('iterator')); function _m($message) { return [$message, null]; } foreach($users as $user) { echo "User is `$user`.".PHP_EOL; } // This tells it to hari-kari. var_dump($supervisor->send(['SIGHUP', $supervisor])); $supervisor2 = makeReceiver(null, ['eduardo','paul','simon',]); $supervisor2->send(['addUser','ellen']); $supervisor2->send(['addUser','joe']); $users2 = $supervisor2->send(_m('iterator')); foreach($users2 as $user2) { echo "User2 is `$user2`.".PHP_EOL; } // Walk the plank, aargh! matey! var_dump($supervisor2->send(['SIGHUP', $supervisor])); function makeReceiver(?int $id = null, ?array $names = null) { $names = $names ?? []; $cNames = 0; $maxUsers = 5; $running = true; $id = $id ?? random_int(1, 500000); $log = function($signal, $message, ?string $tmpl = null) use($id) { $tmpl = $tmpl ?? 'Receiver(%d): [%s](%s)'; echo sprintf($tmpl, $id, $signal, \json_encode($message)).PHP_EOL; }; while ($running) { list($signal, $message) = yield; $log($signal, $message); switch($signal) { case 'SIGHUP': // Hang up! $running = false; return null; case 'SIGCYC': // Recycle, reset $names = []; $cNames = 0; break; case 'addUser': if ($maxUsers > $cNames) { $names[] = $message; $cNames++; } break; case 'iterator': $maxUsers = 0; yield array_values(array_unique(array_values($names))); } } }

Version	System time (s)	User time (s)	Memory (MiB)
7.2.3	0.014	0.017	17.98
7.2.2	0.019	0.017	17.98
7.2.1	0.014	0.014	18.19
7.2.0	0.012	0.012	17.98
7.1.15	0.010	0.013	17.00
7.1.14	0.012	0.015	17.13
7.1.13	0.014	0.015	16.87
7.1.12	0.016	0.012	16.86
7.1.11	0.013	0.013	16.66
7.1.10	0.014	0.014	16.00
7.1.9	0.014	0.013	16.43
7.1.8	0.012	0.011	16.23
7.1.7	0.046	0.011	15.46
7.1.6	0.034	0.020	33.00
7.1.5	0.042	0.015	32.97
7.1.4	0.027	0.016	32.58
7.1.3	0.032	0.016	32.63
7.1.2	0.035	0.018	32.93
7.1.1	0.092	0.013	14.91
7.1.0	0.008	0.015	14.93