Online PHP editor | perf for dcsQL

@ 2019-02-11T22:16:28Z

<?php


$iter = function($a) : void {
    yield $a + 1;
};

$reset = function ($a) : bool {
    return $a == 7;
};

$init = function () : int {
    return 3;
};

function rotatable(callable $iterate, callable $reset, callable $init) : \Generator {
    $i = $init();
    $gen = $iterate($i);
    while (TRUE) {
        yield $i;
        $i = $gen->current();
        $reset($i) and $i = $init();
        $gen = $iterate($i);
    }
}

function rotate(\Generator $generator) {
    $current = $generator->current();
    $generator->next();
    return $current;
}

$gen = rotatable($iter, $reset, $init);
for ($i = 0; $i < 15; $i++) {
  var_dump(rotate($gen));
}

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)
7.3.2	0.082	0.003	14.75
7.3.1	0.149	0.010	14.45
7.3.0	0.114	0.013	14.58
7.2.15	0.107	0.003	15.10
7.2.14	0.086	0.007	14.87
7.2.13	0.078	0.010	14.55
7.2.12	0.084	0.003	14.70
7.2.11	0.087	0.000	14.89
7.2.10	0.100	0.007	14.76
7.2.9	0.092	0.007	14.86
7.2.8	0.092	0.010	15.00
7.2.7	0.104	0.003	14.96
7.2.6	0.106	0.010	14.64
7.2.5	0.122	0.006	14.82
7.2.4	0.089	0.010	15.02
7.2.3	0.108	0.003	14.63
7.2.2	0.107	0.007	14.94
7.2.1	0.100	0.003	14.66
7.2.0	0.098	0.003	15.07
7.1.25	0.105	0.000	13.81

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