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Editing: ExtensionMimeTypeDetector.php

<?php

declare(strict_types=1);

namespace League\MimeTypeDetection;

use const PATHINFO_EXTENSION;

class ExtensionMimeTypeDetector implements MimeTypeDetector, ExtensionLookup
{
    /**
     * @var ExtensionToMimeTypeMap
     */
    private $extensions;

public function __construct(?ExtensionToMimeTypeMap $extensions = null)
    {
        $this->extensions = $extensions ?: new GeneratedExtensionToMimeTypeMap();
    }

public function detectMimeType(string $path, $contents): ?string
    {
        return $this->detectMimeTypeFromPath($path);
    }

public function detectMimeTypeFromPath(string $path): ?string
    {
        $extension = strtolower(pathinfo($path, PATHINFO_EXTENSION));

return $this->extensions->lookupMimeType($extension);
    }

public function detectMimeTypeFromFile(string $path): ?string
    {
        return $this->detectMimeTypeFromPath($path);
    }

public function detectMimeTypeFromBuffer(string $contents): ?string
    {
        return null;
    }

public function lookupExtension(string $mimetype): ?string
    {
        return $this->extensions instanceof ExtensionLookup
            ? $this->extensions->lookupExtension($mimetype)
            : null;
    }

public function lookupAllExtensions(string $mimetype): array
    {
        return $this->extensions instanceof ExtensionLookup
            ? $this->extensions->lookupAllExtensions($mimetype)
            : [];
    }
}

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