Online PHP editor | perf for vVLL8

@ 2019-10-16T08:59:04Z

<?php
error_reporting(-1);
header("Content-Type: text/plain; charset=utf-8");
mb_internal_encoding('utf-8');

define('SUBWAY', 'sub');
define('FOOT', 'foot');
define('BUS', 'bus');

$transportName = array(
    SUBWAY => 'едешь на метро',
    FOOT => 'идешь пешком',
    BUS => 'едешь на автобусе'
);

$startPoint = 'pet'; // Петроградская
$endPoint = 'nov'; // Новая Голландия

$pointNames = array(
    'pet' => 'ст. м. Петроградская',
    'chk' => 'ст. м. Чкаловская',
    'gor' => 'ст. м. Горьковская',
    'spo' => 'ст. м. Спортивная',
    'vas' => 'ст. м. Василеостровская',
    'kre' => 'Петропавловская крепость',
    'let' => 'Летний сад',
    'dvo' => 'Дворцовая площадь',
    'isa' => 'Исакиевский собор',
    'nov' => 'Новая Голландия',
    'ras' => 'Дом Раскольникова',
    'gos' => 'Гостиный Двор',
    'sen' => 'Сенная Площадь',
    'vla' => 'ст. м. Владимирская',
    'vit' => 'Витебский вокзал',
    'teh' => 'Технолоческий Институт'
);

$paths = array(
    'pet' => array(
        'chk' => canGet(10, BUS),
        'gor' => canGet(3, SUBWAY)
    ),

    'chk' => array(
        'pet' => canGet(10, BUS),
        'spo' => canGet(3, SUBWAY)
    ),

    'gor' => array(
        'pet' => canGet(3, BUS),
        'kre' => canGet(5, FOOT),
        'gos' => canGet(6, SUBWAY)
    ),

    'spo' => array(
        'chk' => canGet(3, SUBWAY),
        'vas' => canGet(10, BUS),
        'sen' => canGet(7, SUBWAY)
    ),

    'vas' => array(
        'spo' => canGet(10, BUS),
        'gos' => canGet(7, SUBWAY),
        'nov' => canGet(11, FOOT)
    ),

    'kre' => array(
        'gor' => canGet(5, FOOT)
    ),

    'let' => array(
        'dvo' => canGet(6, FOOT),
        'gos' => canGet(7, FOOT)
    ),

    'dvo' => array(
        'isa' => canGet(6, FOOT),
        'gos' => canGet(6, FOOT),
        'let' => canGet(6, FOOT)
    ),

    'isa' => array(
        'dvo' => canGet(6, FOOT),
        'nov' => canGet(5, FOOT)
    ),

    'nov' => array(
        'vas' => canGet(11, FOOT),
        'isa' => canGet(5, FOOT),
        'ras' => canGet(7, BUS)
    ),

    'ras' => array(
        'nov' => canGet(7, BUS),
        'sen' => canGet(3, FOOT)
    ),

    'gos' => array(
        'vas' => canGet(7, SUBWAY),
        'sen' => canGet(3, SUBWAY),
        'dvo' => canGet(6, FOOT),
        'gor' => canGet(6, SUBWAY),
        'let' => canGet(7, FOOT),
        'vla' => canGet(7, FOOT)
    ),

    'sen' => array(
        'ras' => canGet(3, FOOT),
        'spo' => canGet(7, SUBWAY),
        'gos' => canGet(3, SUBWAY),
        'vla' => canGet(4, SUBWAY),
        'vit' => canGet(2, SUBWAY),
        'teh' => canGet(3, SUBWAY)
    ),

    'vla' => array(
        'sen' => canGet(4, SUBWAY),
        'gos' => canGet(7, FOOT),
        'vit' => canGet(3, SUBWAY)
    ),

    'vit' => array(
        'sen' => canGet(2, SUBWAY),
        'teh' => canGet(2, SUBWAY),
        'vla' => canGet(3, SUBWAY)
    ),

    'teh' => array(
        'sen' => canGet(3, SUBWAY),
        'vit' => canGet(2, SUBWAY)
    )
);

function canGet($time, $byWhat)
{
    return array('time' => $time, 'by' => $byWhat);
}

function makeOneStep($paths, $pathDone, $time, $point, $target)
{
    foreach ($paths[$point] as $subPoint => $values) {
        if ($subPoint == $target) {
            $pathDone[] = $subPoint;
            $result = array();
            $result['path'] = $pathDone;
            $result['time'] = $time + $paths[$point][$subPoint]['time'];
            return $result;
        } elseif (!in_array($subPoint, $pathDone)) {
            $newPathDone = $pathDone;
            $newPathDone[] = $subPoint;
            $time += $paths[$point][$subPoint]['time'];
            return makeOneStep($paths, $newPathDone, $time, $subPoint, $target);
        }
    }
}

$truePaths[] = makeOneStep($paths, array($startPoint), 0, $startPoint, $endPoint);

var_dump($truePaths);

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)
8.3.6	0.014	0.000	18.30
8.3.5	0.010	0.010	19.84
8.3.4	0.012	0.003	18.73
8.3.3	0.012	0.003	18.79
8.3.2	0.000	0.008	20.98
8.3.1	0.007	0.000	21.97
8.3.0	0.009	0.000	20.89
8.2.18	0.016	0.000	18.18
8.2.17	0.000	0.015	22.96
8.2.16	0.007	0.007	22.30
8.2.15	0.004	0.004	24.18
8.2.14	0.004	0.004	24.66
8.2.13	0.008	0.000	26.16
8.2.12	0.000	0.008	21.04
8.2.11	0.011	0.000	19.37
8.2.10	0.011	0.000	17.97
8.2.9	0.000	0.008	17.97
8.2.8	0.003	0.005	19.28
8.2.7	0.004	0.007	17.63
8.2.6	0.004	0.004	17.75
8.2.5	0.004	0.004	17.63
8.2.4	0.000	0.008	19.29
8.2.3	0.005	0.003	19.50
8.2.2	0.004	0.004	18.31
8.2.1	0.005	0.003	19.36
8.2.0	0.008	0.000	19.31
8.1.28	0.006	0.009	25.92
8.1.27	0.006	0.003	22.59
8.1.26	0.000	0.008	26.35
8.1.25	0.006	0.003	28.09
8.1.24	0.009	0.013	22.20
8.1.23	0.008	0.004	21.02
8.1.22	0.000	0.008	17.91
8.1.21	0.000	0.008	19.02
8.1.20	0.009	0.000	17.48
8.1.19	0.000	0.008	17.36
8.1.18	0.000	0.009	18.10
8.1.17	0.000	0.008	17.62
8.1.16	0.004	0.004	19.13
8.1.15	0.004	0.004	19.02
8.1.14	0.005	0.002	20.43
8.1.13	0.002	0.005	17.54
8.1.12	0.004	0.004	17.66
8.1.11	0.004	0.004	17.55
8.1.10	0.003	0.005	17.48
8.1.9	0.000	0.007	17.55
8.1.8	0.007	0.000	17.64
8.1.7	0.003	0.005	17.47
8.1.6	0.008	0.000	17.63
8.1.5	0.000	0.008	17.62
8.1.4	0.003	0.006	17.66
8.1.3	0.000	0.008	17.83
8.1.2	0.005	0.003	17.83
8.1.1	0.008	0.000	17.62
8.1.0	0.003	0.006	17.66
8.0.30	0.006	0.003	20.02
8.0.29	0.000	0.010	16.75
8.0.28	0.004	0.004	18.48
8.0.27	0.000	0.007	17.29
8.0.26	0.004	0.004	16.94
8.0.25	0.004	0.004	17.11
8.0.24	0.004	0.004	16.95
8.0.23	0.005	0.003	17.10
8.0.22	0.004	0.004	16.96
8.0.21	0.003	0.003	16.93
8.0.20	0.006	0.000	17.13
8.0.19	0.005	0.003	16.95
8.0.18	0.004	0.004	17.00
8.0.17	0.006	0.003	17.05
8.0.16	0.003	0.006	17.11
8.0.15	0.000	0.007	16.97
8.0.14	0.004	0.004	16.93
8.0.13	0.003	0.003	13.42
8.0.12	0.008	0.000	16.89
8.0.11	0.007	0.000	16.83
8.0.10	0.008	0.000	17.05
8.0.9	0.005	0.005	17.08
8.0.8	0.010	0.009	16.95
8.0.7	0.008	0.000	17.01
8.0.6	0.009	0.000	17.04
8.0.5	0.004	0.004	16.83
8.0.3	0.014	0.005	17.38
8.0.2	0.012	0.006	17.07
8.0.1	0.003	0.005	17.04
8.0.0	0.019	0.000	16.77
7.4.33	0.005	0.000	15.55
7.4.32	0.004	0.004	16.80
7.4.30	0.003	0.003	16.78
7.4.29	0.003	0.003	16.73
7.4.28	0.005	0.003	16.68
7.4.27	0.003	0.005	16.54
7.4.26	0.003	0.003	13.35
7.4.25	0.000	0.007	16.67
7.4.24	0.004	0.004	16.70
7.4.23	0.005	0.002	16.73
7.4.22	0.001	0.006	16.64
7.4.21	0.008	0.009	16.73
7.4.20	0.000	0.008	16.52
7.4.13	0.007	0.016	16.43
7.4.12	0.012	0.006	16.60
7.4.11	0.011	0.007	16.44
7.4.10	0.007	0.013	16.54
7.4.9	0.006	0.012	16.73
7.4.8	0.004	0.015	19.39
7.4.7	0.010	0.007	16.74
7.4.6	0.007	0.010	16.81
7.4.5	0.007	0.010	16.68
7.4.4	0.012	0.006	16.59
7.4.0	0.007	0.004	14.99
7.3.33	0.003	0.003	16.53
7.3.32	0.000	0.006	13.36
7.3.31	0.004	0.004	16.32
7.3.30	0.000	0.007	16.38
7.3.29	0.005	0.010	16.48
7.3.28	0.007	0.007	16.55
7.3.26	0.012	0.009	16.63
7.3.24	0.009	0.012	16.63
7.3.23	0.016	0.009	16.74
7.3.21	0.012	0.009	16.47
7.3.20	0.010	0.007	16.44
7.3.19	0.009	0.009	16.52
7.3.18	0.013	0.003	16.72
7.3.17	0.003	0.016	16.44
7.3.16	0.013	0.009	16.68
7.3.10	0.012	0.003	15.06
7.3.9	0.015	0.006	14.63
7.3.8	0.017	0.000	15.24
7.3.7	0.011	0.008	14.66
7.3.6	0.009	0.006	14.91
7.3.5	0.006	0.009	14.94
7.3.4	0.012	0.003	14.63
7.3.3	0.003	0.016	15.06
7.3.2	0.003	0.014	15.16
7.3.1	0.007	0.007	14.92
7.3.0	0.008	0.008	14.68
7.2.33	0.017	0.011	16.71
7.2.32	0.011	0.007	16.80
7.2.31	0.011	0.006	16.93
7.2.30	0.014	0.003	16.79
7.2.29	0.012	0.012	16.68
7.2.23	0.012	0.006	15.14
7.2.22	0.013	0.004	15.17
7.2.21	0.010	0.010	15.07
7.2.20	0.006	0.009	15.09
7.2.19	0.013	0.003	15.09
7.2.18	0.014	0.004	15.02
7.2.17	0.011	0.004	15.45
7.2.16	0.012	0.004	14.99
7.2.15	0.008	0.008	15.27
7.2.14	0.013	0.009	15.39
7.2.13	0.009	0.008	15.36
7.2.12	0.012	0.009	15.38
7.2.11	0.008	0.011	14.97
7.2.10	0.009	0.013	15.32
7.2.9	0.008	0.008	15.17
7.2.8	0.012	0.009	15.41
7.2.7	0.006	0.013	15.23
7.2.6	0.009	0.012	15.22
7.2.5	0.004	0.012	15.14
7.2.4	0.009	0.009	15.15
7.2.3	0.003	0.012	15.27
7.2.2	0.010	0.005	15.11
7.2.1	0.009	0.006	15.11
7.2.0	0.021	0.012	15.20
7.1.32	0.012	0.004	13.91
7.1.31	0.011	0.011	14.00
7.1.30	0.006	0.012	13.97
7.1.29	0.014	0.003	14.05
7.1.28	0.006	0.009	14.09
7.1.27	0.005	0.014	14.16
7.1.26	0.006	0.009	14.12
7.1.25	0.006	0.009	14.09

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