Simplified CsvEnvVarProcessor

ExplodeEnvVarProcessor.php

<?php declare(strict_types=1);

use Symfony\Component\DependencyInjection\EnvVarProcessorInterface;
use Symfony\Component\DependencyInjection\Exception\RuntimeException;

final class CsvEnvVarProcessor implements EnvVarProcessorInterface
{
    private const DELIMITERS = [
        'dot' => '.',
        'colon' => ':',
        'dash' => '-',
        'bar' => '|',
    ];

    public static function getProvidedTypes(): array
    {
        return [
            'csv-dot' => 'array',
            'csv-colon' => 'array',
            'csv-dash' => 'array',
            'csv-bar' => 'array',
        ];
    }

    /**
     * @return non-empty-list<string|null>
     */
    public function getEnv(string $prefix, string $name, Closure $getEnv): array
    {
        $delimiter = self::DELIMITERS[$prefix];
        $env = $getEnv($name);

        return str_getcsv($env, $delimiter, '"', \PHP_VERSION_ID >= 70400 ? '' : '\\');
    }
}