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run code in 300+ PHP versions simultaneously

@ 2020-08-16T11:22:01Z

<?php

final class ArrayCleaner
{
    public static function clean(array $value): array
    {
        foreach ($value as $k => $v) {
            if (\is_array($v)) {
                $value[$k] = self::clean($v);

                if (0 == \count($value[$k])) {
                    unset($value[$k]);
                }
            } elseif (empty($v)) {
                unset($value[$k]);
            }
        }

        return $value;
    }
}

$input = [
    'empty_string_to_remove' => '',
    'empty_int_to_remove' => 0,
    'empty_string_number_to_remove' => '0',
    'value_to_keep' => 5,
    'empty_array_to_remove' => [],
    'empty_array_of_empty_arrays_to_remove' => [
        'one' => [],
        'two' => [],
        'three' => [false, null, '0'],
    ],
    'array_to_keep_1' => [
        'value' => 1,
    ],
    'array_to_keep_2' => [
        'empty_to_remove' => [],
        'array_to_keep' => ['yes'],
    ],
];

print_r(ArrayCleaner::clean($input));

Output for 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.4.16, 8.5.0 - 8.5.1: Array ( [value_to_keep] => 5 [array_to_keep_1] => Array ( [value] => 1 ) [array_to_keep_2] => Array ( [array_to_keep] => Array ( [0] => yes ) ) )
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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