3v4l.org

run code in 300+ PHP versions simultaneously

@ 2017-11-06T18:24:31Z

<?php

function array_make_square(array &$array, $fill = ' ') {
    $pad = count(array_keys($array));
    foreach ($array as &$row) {
        $row = array_pad($row, $pad, $fill);
    }
}

function array_organize(array &$outer) {
    $offset = 0;
    foreach ($outer as &$inner) {
        sort($inner);
        array_rotate($inner, $offset++);
    }
}

function array_rotate(array &$array, $offset) {
    foreach (array_slice($array, 0, $offset, true) as $key => $val) {
        unset($array[$key]);
        $array[$key] = $val;
    }
}

function solve($test) {
    array_make_square($test);
    array_organize($test);
    return $test;
}

function display($outer) {
    echo "[\n";
    foreach ($outer as $row => $inner) {
        echo "  $row => ['" . implode("', '", $inner) . "']\n";
    }
    echo "]\n";
}

$tests = [
    [ ['X'], ['X'], ['X'] ],
    [ ['X', 'Y'], ['X', 'Y'], ['X', 'Y'] ],
    [ ['X', 'Y', 'Z'], ['X', 'Y', 'Z'], ['X', 'Y', 'Z'] ],
];
array_map('display', array_map('solve', $tests));

Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: [ 0 => [' ', ' ', 'X'] 1 => [' ', 'X', ' '] 2 => ['X', ' ', ' '] ] [ 0 => [' ', 'X', 'Y'] 1 => ['X', 'Y', ' '] 2 => ['Y', ' ', 'X'] ] [ 0 => ['X', 'Y', 'Z'] 1 => ['Y', 'Z', 'X'] 2 => ['Z', 'X', 'Y'] ]
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 [ 0 => [' ', ' ', 'X'] 1 => [' ', 'X', ' '] 2 => ['X', ' ', ' '] ] [ 0 => [' ', 'X', 'Y'] 1 => ['X', 'Y', ' '] 2 => ['Y', ' ', 'X'] ] [ 0 => ['X', 'Y', 'Z'] 1 => ['Y', 'Z', 'X'] 2 => ['Z', 'X', 'Y'] ]

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