Online PHP editor | perf for Ov06C

@ 2024-04-15T21:47:22Z

#!/usr/bin/env php
<?php

/**
 * Generate the page order for building a PDF of A4 pages printed as an A5 Booklet form on a MacBook that is
 * missing the proper A5 Booklet form.
 *
 * @return int[]
 */
function getPageList(int $pageCount): array
{
    // Generate a list of page numbers, including additional blank pages required to get the total number of page
    // divisible by 4 to represent the list of A4 pages to be printed in as an A5 Booklet form.
    $pages = $pageCount % 4 !== 0
        ?
        array_merge(
            range(1, $pageCount),
            array_fill(
                $pageCount + 1,
                4 - ($pageCount % 4),
                'blank'
            )
        )
        : range(1, $pageCount);

    $results = [];

    // Extract the pages to be printed in the relevant order for an A5 Booklet form.
    while (count($pages) !== 0) {
        // The page order is last page, first page, first + 1, last - 1.
        // As we remove these pages from $pages, we can repeat this extraction whilst there are no pages to left.
        $results[1 + count($results)] = [
            'Left front' => array_pop($pages),
            'Right front' => array_shift($pages),
            'Right back' => array_shift($pages),
            'Left back' => array_pop($pages),
        ];
    }

    return $results;
}

print_r(getPageList($argv[1]));

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)
8.3.7	0.013	0.006	18.43
8.3.6	0.029	0.016	25.92
8.3.5	0.012	0.003	25.92
8.3.4	0.011	0.019	25.92
8.3.3	0.025	0.007	25.92
8.3.2	0.029	0.007	25.92
8.3.1	0.030	0.000	25.92
8.3.0	0.027	0.006	25.92
8.2.19	0.014	0.007	16.58
8.2.18	0.009	0.009	25.92
8.2.17	0.026	0.010	25.92
8.2.16	0.028	0.012	25.92
8.2.15	0.031	0.003	25.92
8.2.14	0.024	0.010	25.92
8.2.13	0.026	0.007	25.92
8.2.12	0.035	0.000	25.92
8.2.11	0.026	0.007	25.92
8.2.10	0.025	0.006	25.92
8.2.9	0.033	0.003	25.92
8.2.8	0.024	0.008	25.92
8.2.7	0.029	0.007	25.92
8.2.6	0.012	0.012	25.92
8.2.5	0.023	0.010	25.92
8.2.4	0.022	0.007	25.92
8.2.3	0.022	0.009	25.92
8.2.2	0.012	0.003	25.92
8.2.1	0.026	0.003	25.92
8.2.0	0.024	0.008	25.92
8.1.28	0.028	0.003	25.92
8.1.27	0.030	0.004	25.92
8.1.26	0.020	0.014	25.92
8.1.25	0.034	0.000	25.92
8.1.24	0.022	0.007	25.92
8.1.23	0.024	0.007	25.92
8.1.22	0.023	0.005	25.92
8.1.21	0.028	0.006	25.92
8.1.20	0.020	0.011	25.92
8.1.19	0.015	0.018	25.92
8.1.18	0.034	0.003	25.92
8.1.17	0.037	0.006	25.92
8.1.16	0.019	0.011	25.92
8.1.15	0.021	0.009	25.92
8.1.14	0.025	0.006	25.92
8.1.13	0.024	0.006	25.92
8.1.12	0.022	0.009	25.92
8.1.11	0.023	0.005	25.92
8.1.10	0.027	0.006	25.92
8.1.9	0.030	0.000	25.92
8.1.8	0.030	0.000	25.92
8.1.7	0.026	0.013	25.92
8.1.6	0.035	0.007	25.92
8.1.5	0.042	0.006	25.92
8.1.4	0.040	0.004	25.92
8.1.3	0.028	0.011	25.92
8.1.2	0.019	0.016	25.92
8.1.1	0.024	0.012	25.92
8.1.0	0.028	0.007	25.92

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