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@ 2025-11-11T11:36:49Z

<?php

function benchmark(callable ...$functions): void
{
    $times = array_combine(array_keys($functions), array_fill(0, count($functions), 0.0));
    $baseTime = 0.0;
    $baseCallable = fn() => null;
    $start = hrtime(true);
    $count = 0;

    while (hrtime(true) < $start + 1e9) {
        $startCall = hrtime(true);
        $baseCallable();
        $baseTime += hrtime(true) - $startCall;

        foreach ($functions as $key => $function) {
            $startCall = hrtime(true);
            $function();
            $times[$key] += hrtime(true) - $startCall;
        }
        $count++;
    }

    foreach ($times as $key => $time) {
        $times[$key] = $time - $baseTime;
    }

    if ($count < 100) {
        echo "Methods too low. Iterated only {$count} times\n";
    }

    asort($times);

    echo "Benchmark results after {$count} iterations in nanoseconds:\n";
    foreach ($times as $key => $time) {
        echo $key . ': ' . $time . "\n";
    }
}

enum OptionEnum: string
{
    case Option1 = 'opt1';
    case Option2 = 'opt2';
    case Option3 = 'opt3';
    case Option4 = 'opt4';
    case Option5 = 'opt5';

    public static function values(): array
    {
        return ['opt1', 'opt2', 'opt3', 'opt4', 'opt5'];
    }

    public static function valuesArrayMap(): array
    {
        return array_map(static fn(self $c) => $c->value, self::cases());
    }

    public static function valuesArrayColumn(): array
    {
        return array_column(self::cases(), 'value');
    }
}

benchmark(
    arrayRaw: fn() => OptionEnum::values(),
    arrayMap: fn() => OptionEnum::valuesArrayMap(),
    arrayCol: fn() => OptionEnum::valuesArrayColumn(),
);

Output for 8.5.0: Benchmark results after 1259823 iterations in nanoseconds: arrayRaw: 16970391 arrayCol: 162130385 arrayMap: 339111305
Output for 8.4.15: Benchmark results after 1113882 iterations in nanoseconds: arrayRaw: 12568942 arrayCol: 168922279 arrayMap: 346432446
Output for 8.4.14: Benchmark results after 1014614 iterations in nanoseconds: arrayRaw: 14143813 arrayCol: 164876373 arrayMap: 359937644
Output for 8.4.13: Benchmark results after 1113136 iterations in nanoseconds: arrayRaw: 21625866 arrayCol: 155379689 arrayMap: 350099288
Output for 8.4.9: Benchmark results after 1165449 iterations in nanoseconds: arrayRaw: 20145717 arrayCol: 161518757 arrayMap: 348646887
Output for 8.3.28: Benchmark results after 1144093 iterations in nanoseconds: arrayRaw: 11739214 arrayCol: 157692853 arrayMap: 344504194
Output for 8.3.27: Benchmark results after 1160835 iterations in nanoseconds: arrayRaw: 24538215 arrayCol: 161275942 arrayMap: 334285352
Output for 8.3.26: Benchmark results after 1136686 iterations in nanoseconds: arrayRaw: 24647542 arrayCol: 155309596 arrayMap: 341306346
Output for 8.3.18: Benchmark results after 1135106 iterations in nanoseconds: arrayRaw: 23090789 arrayCol: 157814129 arrayMap: 335386510
Output for 8.3.5: Benchmark results after 1144669 iterations in nanoseconds: arrayRaw: 20169802 arrayCol: 157147933 arrayMap: 338496531

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