Online PHP editor | perf for YkK5j

@ 2013-04-18T10:14:19Z

<?php

namespace GeneratorExample;

class Pipeline
{
    protected $generators = [];

    function __construct()
	{
        foreach (func_get_args() as $g) {
            $this->add($g);
        }
    }

    function add(callable $generator)
    {
        $this->generators[] = $generator;
        return $this;
    }

    function __invoke()
    {
		$inputs = func_get_args();

        foreach ($this->generators as $g) {
            $generator = call_user_func_array($g, $inputs);
            $inputs = [$generator];
        }

        return $generator;
    }
}

$uppercase = function(\Traversable $in)
{
    foreach ($in as $word) {
        yield strtoupper($word);
    }
}

$reverse = function(\Traversable $in)
{
    foreach ($in as $word) {
        yield strrev($word);
    }
}

$println = function(\Traversable $in)
{
    foreach ($in as $line) {
        echo "$line\n";
    }
}

$words = new \ArrayIterator(["foo", "bar", "baz"]);

$p = new Pipeline($uppercase, $reverse, $println);
$p($words);

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)
5.4.14	0.015	0.049	12.09
5.4.13	0.043	0.042	13.14
5.4.12	0.015	0.051	12.04
5.4.11	0.013	0.045	12.03
5.4.10	0.014	0.057	12.03
5.4.9	0.016	0.058	12.03
5.4.8	0.013	0.048	12.03
5.4.7	0.019	0.057	12.03
5.4.6	0.015	0.049	12.02
5.4.5	0.012	0.050	12.02
5.4.4	0.014	0.047	12.01
5.4.3	0.020	0.051	12.00
5.4.2	0.015	0.047	12.00
5.4.1	0.010	0.044	12.00
5.4.0	0.011	0.043	11.50
5.3.24	0.013	0.045	12.72
5.3.23	0.095	0.041	13.22
5.3.22	0.018	0.057	12.68
5.3.21	0.018	0.061	12.68
5.3.20	0.015	0.057	12.68
5.3.19	0.017	0.058	12.68
5.3.18	0.029	0.093	12.67
5.3.17	0.026	0.085	12.67
5.3.16	0.015	0.051	12.67
5.3.15	0.011	0.047	12.67
5.3.14	0.014	0.051	12.66
5.3.13	0.013	0.057	12.66
5.3.12	0.016	0.060	12.66
5.3.11	0.016	0.052	12.66
5.3.10	0.014	0.045	12.12
5.3.9	0.021	0.065	12.09
5.3.8	0.019	0.063	12.08
5.3.7	0.016	0.050	12.08
5.3.6	0.016	0.084	12.07
5.3.5	0.014	0.057	12.02
5.3.4	0.016	0.059	12.01
5.3.3	0.014	0.049	11.97
5.3.2	0.015	0.045	11.75
5.3.1	0.022	0.071	11.71
5.3.0	0.014	0.057	11.70

preferences:dark modelive preview