Online PHP editor | perf for Amb0B

@ 2015-11-08T00:49:42Z

<?php

function compose(/* funs to compose */) {
    $fl = func_get_args();
    return function($x) use($fl) {
        $val = $x;
        while (null !== $f = array_pop($fl)) {
            $val = $f($val);
        };
        return $val;
    };
}

$up = function($s) {return strtoupper($s);};
$y = function($s) {return $s.'!';};
$reverse = function($a) {return array_reverse($a);};
$head = function($a) {return array_shift(array_values($a))};

$data = ['jumpkick', 'roundhouse', 'uppercut'];
$c = compose($y, $up, $head, $reverse);

var_dump($c($data));

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)
5.6.15	0.013	0.030	18.19
5.6.14	0.013	0.043	18.21
5.6.13	0.000	0.083	18.16
5.6.12	0.007	0.067	21.14
5.6.11	0.013	0.087	21.12
5.6.10	0.003	0.087	21.04
5.6.9	0.007	0.040	20.96
5.6.8	0.020	0.070	20.50
5.5.30	0.003	0.040	18.07
5.5.29	0.010	0.077	17.96
5.5.28	0.013	0.050	20.88
5.5.27	0.013	0.080	20.88
5.5.26	0.010	0.070	20.77
5.5.25	0.003	0.093	20.81
5.5.24	0.020	0.070	20.08

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