Online PHP editor | perf for mrb8f

@ 2015-12-25T03:45:23Z

<?php

function pack_array_of_bools_to_string(array $bools): string
{
    $str = '';
    $l = count($bools);
    for ($i = 0; $i < $l; ++$i) {
        $str .= $bools ? '1' : '0';
    }
    return $str;
}

function unpack_string_to_array_of_bools(string $packed): array
{
    $arr = [];
    $l = strlen($packed) - 1;
    for ($i = 0; $i < $l; ++$i) {
        $arr[] = $packed[$i] === '1';
    }
    return $arr;
}

$arr = [
    true, true, false, true, false, false, true, true, false, false, false, true, false
]

var_dump(
    pack_array_of_bools_to_string($arr),
    unpack_string_to_array_of_bools('1101001100010')
);

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)
7.0.1	0.007	0.070	20.24
7.0.0	0.010	0.083	20.07
5.6.16	0.007	0.047	20.50
5.6.15	0.007	0.083	18.22
5.6.14	0.007	0.077	18.15
5.6.13	0.003	0.040	18.18
5.6.12	0.003	0.063	20.95
5.6.11	0.013	0.047	21.09
5.6.10	0.017	0.077	21.02
5.6.9	0.007	0.037	20.99
5.6.8	0.010	0.033	20.35
5.5.30	0.003	0.043	18.07
5.5.29	0.013	0.073	17.94
5.5.28	0.003	0.043	20.88
5.5.27	0.003	0.053	20.77
5.5.26	0.013	0.080	20.76
5.5.25	0.010	0.077	20.66
5.5.24	0.007	0.033	20.07

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