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run code in 300+ PHP versions simultaneously

@ 2022-02-27T05:15:31Z

<?php

function getValue($haystack, $indexes) {
    $indices = explode(',', $indexes);
    $finalIndex = array_pop($indices);
    $keys = [];
    foreach ($indices as $keys[]) {
        $keys[] = 'children';
    }
    array_push($keys, $finalIndex, 'country', 'city');
    //var_export($keys);

    foreach ($keys as $level => $key) {
        if (!key_exists($key, $haystack)) {
            throw new Exception(
                sprintf(
                    "Path attempt failed for [%s]. No `%s` key found on levelIndex %d",
                    implode('][', $keys),
                    $key,
                    $level
                )
            );
        }
        $haystack = $haystack[$key];
    }
    return $haystack;
}

$test = [
    [
        'children' => [
            [
                'children' => [
                    [
                        'country' => [
                            'city' => 'Paris',
                         ]
                    ],
                    [
                        'country' => [
                            'city' => 'Kyiv',
                         ]
                    ]
                ]
            ]
        ]
    ],
    [
        'children' => [
            [
                'country' => [
                    'city' => 'New York',
                ]
            ],
            [
                'country' => [
                    'city' => 'Sydney',
                ]
            ]
        ]
    ]
];

$result = [];
try {
    $result['0,0,0'] = getValue($test, '0,0,0');
    $result['1,0'] = getValue($test, '1,0');
    $result['1,0,0'] = getValue($test, '1,0,0');
} catch (Exception $e) {
    echo $e->getMessage() . "\n---\n";
}
var_export($result);

Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0: Path attempt failed for [1][children][0][children][0][country][city]. No `children` key found on levelIndex 3 --- array ( '0,0,0' => 'Paris', '1,0' => 'New York', )
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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