Array to YAM-like

arryaml.php

<?php
/**
* arr2yamlike - JSON-alternative format for human, readable and brief
*/

require_once __DIR__."/../vendor/autoload.php";

use Peridot\Leo\Interfaces\Assert;

/**
* Convert array of strings (possibly nested) into indent-formatted string
*
* Convert key into readable `Title Case` and value as it is. But if value
* is nested array, this function recurse. **Variable `$dept` is not a param!**
*
* @param int $indentation Indentation of the pretty string.
*/
function arr2yamlike($arr, $indentation = 3, $depth = 0) {
    return join(PHP_EOL, array_map(function ($value, $key) use ($indentation, $depth) {
        $key = ucwords(str_replace([ '-', '_' ], ' ', $key));
        $value = (is_array($value))? ("\n" . humanifyArray($value, $indentation, $depth + 1)) : " $value";
        return ($depth? str_pad(' ', $depth * $indentation) : '') . ucfirst($key) . " =$value";
    }, array_values($arr), array_keys($arr)));
}

describe('arr2yamlike', function () {
    beforeEach(function () {
        $this->assert = new Assert;
    });

    it('should convert associative array into proper YAML-like output', function () {
        $fixtures = [
            [ [ 'key' => 'value' ], "Key = value" ],
            [ [ 'key-dashed' => 'value' ], "Key Dashed = value" ],
            [
                [
                    'profile' => [
                        'name' => 'Zabaara',
                        'number' => '08291290129'
                    ]
                ],
                <<<EOS
Profile =
    Name = Zabaara
    Number = 08291290129
EOS
            ],
            [
                [
                    'profile' => [
                        'name' => 'Zabaara',
                        'number' => '08291290129'
                    ],
                    'quarto' => 'Shenix',
                ],
                <<<EOS
Profile =
    Name = Zabaara
    Number = 08291290129
Quarto = Shenix
EOS
            ],
        ];

        foreach ($fixtures as $i => $fixture) {
            $this->assert->equal(arr2yamlike($fixture[0], 4), $fixture[1]);
        }
    });
});