Online PHP editor | perf for JIBoI

<?php class Person { public readonly string $lastName; public readonly string $firstName; private readonly int $strength; private readonly int $agility; private readonly int $intelligence; private readonly int $charisma; private readonly int $luck; /** * @param non-empty-string|null $lastName */ public function __construct(?string $lastName = null) { $this->lastName = $lastName ?? $this->randomName(); $this->firstName = $firstName ?? $this->randomName($this->lastName[0]); $this->strength = $this->randomFeatureValue(); $this->agility = $this->randomFeatureValue(); $this->intelligence = $this->randomFeatureValue(); $this->charisma = $this->randomFeatureValue(); $this->luck = $this->randomFeatureValue(); } public function __clone(): void { $this->firstName = $this->randomName($this->lastName[0]); $this->strength = $this->evolveFeatureValue($this->strength); $this->agility = $this->evolveFeatureValue($this->agility); $this->intelligence = $this->evolveFeatureValue($this->intelligence); $this->charisma = $this->evolveFeatureValue($this->charisma); $this->luck = $this->evolveFeatureValue($this->luck); } public function getName(): string { return $this->lastName . ' ' . $this->firstName; } public function getValue(): int { return $this->strength + $this->agility + $this->intelligence + $this->charisma + $this->luck; } public function getDetails(): string { return $this->getName() . ' ' . $this->getValue() . '(' . $this->strength . '+' . $this->agility . '+' . $this->intelligence . '+' . $this->charisma . '+' . $this->luck . ')'; } /** * @return int * @throws Exception */ private function randomFeatureValue(): int { return random_int(0, 9); } private function evolveFeatureValue(int $value): int { return min(max($value + random_int(-1, 1), 0), 9); } public function randomName(?string $notStartingWith = null): string { $possibleNames = ['Alice', 'Bob', 'Charlie', 'Dave', 'Eve', 'Frank', 'Grace', 'Heidi', 'Ivan', 'Judy', 'Kevin', 'Linda', 'Mallory', 'Niaj', 'Olivia', 'Peggy', 'Quentin', 'Rupert', 'Sybil', 'Trent', 'Ursula', 'Victor', 'Walter', 'Xavier', 'Yvonne', 'Zoe']; do { $randomName = $possibleNames[array_rand($possibleNames)]; } while ($notStartingWith !== null && $randomName[0] === $notStartingWith); return $randomName; } } class Life { /** @var Person[] */ private array $population = []; public function run(int $iterations) { while ($iterations-- > 0) { $this->runIteration(); } } public function runIteration() { $this->new(); $this->reproduce(); } public function geStatisticsOnMostValuable() { $topMostValuablePersons = $this->getTopMostValuablePersons(10); $statistics = array_map( fn(Person $person) => $person->getDetails(), $topMostValuablePersons, ); return implode("\n", $statistics); } private function new(): void { foreach (range(1, 3) as $_) { $this->addPerson(new Person()); } } private function reproduce(): void { $topMostValuablePerson = $this->getTopMostValuablePersons(5); // usual evolution foreach (range(1, 3) as $_) { $randomValuablePerson = $topMostValuablePerson[array_rand($topMostValuablePerson)]; $this->addPerson(clone $randomValuablePerson); } // tracked evolution $randomValuablePerson = $topMostValuablePerson[array_rand($topMostValuablePerson)]; $this->addPerson(clone $randomValuablePerson with (lastName: '0000')); } private function addPerson(Person $person) { /** add a person, eventually killing one that already has the same name */ $this->population[$person->getName()] = $person; } /** * @param int $int * @return Person[] */ private function getTopMostValuablePersons(int $int): array { $population = $this->population; uasort($population, function (Person $person1, Person $person2) { return $person2->getValue() <=> $person1->getValue(); }); return array_slice($population, 0, $int); } } $life = new Life(); $life->run(100); echo $life->geStatisticsOnMostValuable();

Version	System time (s)	User time (s)	Memory (MiB)
8.2.6	0.003	0.006	17.50
8.2.5	0.018	0.000	17.50
8.2.4	0.017	0.000	17.25
8.2.3	0.011	0.005	17.38
8.2.2	0.017	0.000	17.21
8.2.1	0.014	0.003	17.35
8.2.0	0.017	0.000	17.00
8.1.19	0.010	0.000	17.00
8.1.18	0.008	0.008	16.86
8.1.17	0.015	0.002	16.88
8.1.16	0.010	0.008	17.00
8.1.15	0.006	0.012	16.99
8.1.14	0.013	0.006	17.13
8.1.13	0.017	0.000	17.13
8.1.12	0.010	0.007	17.34
8.1.11	0.008	0.008	17.13
8.1.10	0.013	0.003	17.00
8.1.9	0.011	0.005	16.98
8.1.8	0.013	0.004	16.98
8.1.7	0.016	0.002	17.22
8.1.6	0.017	0.003	17.13
8.1.5	0.009	0.009	16.98
8.1.4	0.006	0.012	17.00
8.1.3	0.017	0.000	17.13
8.1.2	0.013	0.004	17.25
8.1.1	0.009	0.009	17.25
8.1.0	0.022	0.000	17.13
8.0.28	0.012	0.004	16.52
8.0.27	0.010	0.006	16.52
8.0.26	0.013	0.003	16.75
8.0.25	0.015	0.000	16.52
8.0.24	0.007	0.007	16.52
8.0.23	0.014	0.002	16.63
8.0.22	0.010	0.005	16.52
8.0.21	0.012	0.004	16.63
8.0.20	0.016	0.000	16.75
8.0.19	0.011	0.006	16.61
8.0.18	0.013	0.002	16.63
8.0.17	0.014	0.003	16.59
8.0.16	0.011	0.008	16.52
8.0.15	0.011	0.006	16.63
8.0.14	0.014	0.003	16.52
8.0.13	0.016	0.000	16.52
8.0.12	0.006	0.009	16.75
8.0.11	0.012	0.003	16.52
8.0.10	0.008	0.008	16.63
8.0.9	0.010	0.005	16.52
8.0.8	0.016	0.000	16.52
8.0.7	0.013	0.004	16.52
8.0.6	0.011	0.005	16.80
8.0.5	0.008	0.008	16.52
8.0.3	0.010	0.006	16.63
8.0.2	0.011	0.004	16.52
8.0.1	0.015	0.000	16.52