Online PHP editor | perf for UCqoe

@ 2022-11-16T15:49:21Z

<?php

/**
 * @template TKey of array-key
 * @template TValue
 */
class Collection
{
    /**
     * @var array<TKey, TValue>
     */
    protected $items = [];
    
    /**
     * @param  array<TKey, TValue>  $items
     * @return void
     */
    public function __construct($items = [])
    {
        $this->items = $items;
    }
    
    /**
     * @param  TValue|array-key  $key
     * @return bool
     */
    public function containsStrict_foreach($key)
    {
        foreach ($this->items as $item) {
            if ($item === $key) {
                return true;
            }
        }
        return false;
    }

    /**
     * @param  TValue|array-key  $key
     * @return bool
     */
    public function containsStrict_in_array($key)
    {
        return in_array($key, $this->items, true);
    }
}

/**
 * @template TValue
 * @param array<array-key, TValue>  $items
 * @return array{int, int}
 */
function bench($items): array
{
    $value = $items[count($items) / 2];

    $collection = new Collection($items);
    $prev = hrtime(true);
    $collection->containsStrict_foreach($value);
    $foreach = hrtime(true) - $prev;

    $collection = new Collection($items);
    $prev = hrtime(true);
    $collection->containsStrict_in_array($value);
    $inArray = hrtime(true) - $prev;

    return [$foreach, $inArray];
}

$fmt = "%5s | %-13.13s | %24s | %25s\n";
printf($fmt, 'n', 'name', 'containsStrict (foreach)', 'containsStrict (in_array)');
foreach ([100, 1000, 10000] as $n) {
    printf($fmt, $n, "serial int", ...bench(range(1, $n)));
    printf($fmt, $n, "random int", ...bench(array_map(fn () => random_int(1, $n), range(1, $n))));
    printf($fmt, $n, "uniqid string", ...bench(array_map(fn () => uniqid(), range(1, $n))));
}

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

Version	System time (s)	User time (s)	Memory (MiB)
8.1.12	0.016	0.020	22.61
8.1.11	0.015	0.023	21.82
8.1.10	0.022	0.015	22.40
8.1.9	0.016	0.023	21.89
8.1.8	0.021	0.015	23.66
8.1.7	0.015	0.023	21.86
8.1.6	0.024	0.015	23.84
8.1.5	0.014	0.031	21.95
8.1.4	0.014	0.025	23.86
8.1.3	0.023	0.017	22.03
8.1.2	0.019	0.019	22.02
8.1.1	0.014	0.025	23.70
8.1.0	0.022	0.018	21.85
8.0.25	0.009	0.018	21.86
8.0.24	0.012	0.023	21.14
8.0.23	0.012	0.024	21.14
8.0.22	0.027	0.010	20.98
8.0.21	0.014	0.020	21.06
8.0.20	0.017	0.017	21.07
8.0.19	0.012	0.025	23.06
8.0.18	0.015	0.022	21.13
8.0.17	0.013	0.023	21.14
8.0.16	0.020	0.017	21.13
8.0.15	0.017	0.018	21.00
8.0.14	0.014	0.023	20.96
8.0.13	0.025	0.011	21.08
8.0.12	0.019	0.017	21.13
8.0.11	0.018	0.018	21.04
8.0.10	0.022	0.016	23.05
8.0.9	0.020	0.016	20.95
8.0.8	0.016	0.020	21.90
8.0.7	0.020	0.014	21.02
8.0.6	0.021	0.015	21.77
8.0.5	0.015	0.019	21.02
8.0.3	0.009	0.026	21.02
8.0.2	0.015	0.015	21.81
8.0.1	0.021	0.012	21.08
7.4.33	0.014	0.016	16.91
7.4.32	0.018	0.018	20.70
7.4.30	0.022	0.012	20.63
7.4.29	0.003	0.027	23.35
7.4.28	0.004	0.026	20.63
7.4.27	0.008	0.024	20.28
7.4.26	0.010	0.019	21.08
7.4.25	0.009	0.023	20.71
7.4.24	0.016	0.016	21.34
7.4.23	0.022	0.013	20.73
7.4.22	0.016	0.016	20.63
7.4.21	0.013	0.021	20.61
7.4.20	0.013	0.020	20.73
7.4.19	0.018	0.012	20.86
7.4.18	0.009	0.021	21.31
7.4.16	0.010	0.019	20.86
7.4.15	0.014	0.017	21.29
7.4.14	0.017	0.014	20.54
7.4.13	0.019	0.014	20.78
7.4.12	0.008	0.020	20.34
7.4.11	0.014	0.018	20.39
7.4.10	0.007	0.021	21.32
7.4.9	0.013	0.019	20.52
7.4.8	0.009	0.022	20.41
7.4.7	0.015	0.018	21.44
7.4.6	0.014	0.015	20.66
7.4.5	0.007	0.027	20.36
7.4.4	0.016	0.013	20.53
7.4.3	0.019	0.013	20.61
7.4.2	0.013	0.019	20.70
7.4.1	0.010	0.020	21.38
7.4.0	0.007	0.022	23.11
7.3.0	0.011	0.005	17.33
7.2.0	0.009	0.008	17.33
7.1.0	0.008	0.004	17.33
7.0.0	0.009	0.003	17.33
5.4.45	0.005	0.003	17.33
5.3.29	0.004	0.005	17.33
5.0.0	0.001	0.003	17.33
4.3.0	0.001	0.001	17.33

preferences:dark modelive previewkey bindings