Create thumbnails from images

thumbnail.php

<?php

// Create instance
$img = \Image::make(storage_path("app/{$uploadPath}" . $fileName));
// Make sure 
$img->orientate();
// Resize only the width of the image
$img->resize(250, null, function ($constraint) {
    $constraint->aspectRatio();
});
// Create a thumbnail from the image
$imageThumbnailPath = "app/{$uploadPath}" . get_thumbnail($fileName);
// Finally we save the image as a new file
$img->save(storage_path($imageThumbnailPath));

if (!function_exists('get_thumbnail')) {
    /**
     * Adds the image suffix to get the thumbnail of the image instead
     * @param string $imageName
     * @return string
     */
    function get_thumbnail(string $imageName)
    {
        // Thumbnail suffix, generated by hand for now // TODO
        $suffix = '_tn';

        $imageExtension = pathinfo($imageName, PATHINFO_EXTENSION);
        $thumbailName = (str_replace('.' . $imageExtension, "", $imageName));

        return "{$thumbailName}{$suffix}.{$imageExtension}";
    }
}