在PHP中显示本地目录中的图像

$directory = '/path/to/images/';
$files = scandir($directory);

$allowedExtensions = ['jpg', 'jpeg', 'png', 'gif'];
$imageFiles = [];

foreach ($files as $file) {
    $extension = pathinfo($file, PATHINFO_EXTENSION);
    if (in_array(strtolower($extension), $allowedExtensions)) {
        $imageFiles[] = $file;
    }
}

foreach ($imageFiles as $imageFile) {
    $imagePath = $directory . $imageFile;
    echo '<img src="' . $imagePath . '" alt="' . $imageFile . '">';
}