Online PHP editor | perf for C11n9

@ 2019-01-03T14:56:35Z

<?php

function preserve_shuffle(&$arr)    #Shuffles the key-value associations in an array.
{
    $keys = array_keys($arr);   #extract the keys from the array.
    shuffle($keys);
    for ($index = 0, $length = count($keys); $index < $length; ++$index) {
        $result[$keys[$index]] = $arr[$keys[$index]];
    }
    $arr = $result;
}

$arr = ["a" => "apple", "b" => "banana", "c" => "capsicum", "d" => "dill"];
preserve_shuffle($arr);
var_export($arr);

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)
7.3.1	0.006	0.006	16.85
7.3.0	0.025	0.004	15.51
7.2.13	0.023	0.006	15.54
7.2.12	0.036	0.004	15.59
7.2.11	0.026	0.008	15.70
7.2.10	0.024	0.006	15.54
7.2.9	0.032	0.006	15.78
7.2.8	0.031	0.007	15.49
7.2.7	0.059	0.007	15.63
7.2.6	0.025	0.010	15.80
7.2.5	0.033	0.004	15.55
7.2.4	0.040	0.006	15.63
7.2.3	0.027	0.008	15.73
7.2.2	0.035	0.007	15.69
7.2.1	0.033	0.009	15.63
7.2.0	0.034	0.005	15.46
7.1.25	0.025	0.006	14.62

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