vd/app/helpers.php

<?php

use Carbon\Carbon;
use App\Events\FileUploadEvent;
use Dipper\Foundation\Support\Time;
use Illuminate\Support\Facades\Event;

if (! function_exists('cdn')) {
    /**
     * 生成CDN链接, 可带时间戳防盗链
     *
     * @param string $disk 磁盘名称
     * @param string $uri 路径, e.g. common/test/a.jpg/640
     * @param bool   $deadline 授权过期时间, 默认true
     *
     * @return string
     */
    function cdn($disk, $uri, $deadline = true, $size = 640)
    {
        static $disks;

        if (!$disks[$disk]) {
            $disks[$disk] = app('filesystem')->disk($disk);
        }

        $disk = $disks[$disk];

        if ($deadline === true) {
            $deadline = Carbon::today()->addDay(3)->addHour(1)->timestamp;
        } elseif ($deadline !== false) {
            $deadline = Time::parse($deadline)->timestamp;
        }

        if ($deadline) {
            $symbol = strpos($uri, '?') ? '&' : '?';
            $uri = trim($uri, '/') . $symbol . 'timestamp=' . $deadline;
        }

        return $disk->url($uri);
    }
}

if (! function_exists('account_avatar')) {
    /**
     * 单次获取账户头像
     *
     * @param int  $accountId
     * @param int  $deadline
     * @param bool $size
     * @return string
     */
    function account_avatar($accountId, $deadline = true, $size = 64)
    {
        $path = cdn('data', \App\Domains\Account\Services\AccountService::generateAvatarPath($accountId), $deadline, $size);
        return $path;
    }
}

if (! function_exists('save_cover')) {
    /**
     * 保存封面
     *
     * @param string $type
     * @param int $id
     * @param UploadedFile $file
     * @return void
     */
    function save_cover($type, $id, $file)
    {
        if ($file instanceof UploadedFile && !$file->isValid()) {
            throw new \App\Exceptions\InvalidArgumentException('文件不正确或已损坏');
        }

        if (!in_array($file->guessExtension(), ['jpg', 'jpeg', 'gif', 'png', 'bmp'])) {
            throw new \App\Exceptions\InvalidArgumentException('只支持jpg,jpeg,gif,png,bmp文件格式');
        }

        $filename = "/$type/$id.jpg";

        Event::fire(new FileUploadEvent($file, [
            'filename' => $filename,
            'type' => $type,
            'typeid' => $id,
            'cover' => true,
        ], $disk = 'data'));

        $url = cdn('data', $filename, time());

        return $url;
    }
}

if (! function_exists('get_cover')) {
    /**
     * 保存封面
     *
     * @param string $type
     * @param int $id
     * @param UploadedFile $file
     * @return void
     */
    function get_cover($type, $id, $deadline = true, $size = '640')
    {
        $filename = "/$type/$id.jpg";
        $path = cdn('data', $filename, $deadline, $size);
        return $path;
    }
}

if (! function_exists('config_path')) {
    /**
     * Get the configuration path.
     *
     * @param  string  $path
     * @return string
     */
    function config_path($path = '')
    {
        $path = 'config' . DIRECTORY_SEPARATOR . ($path ? DIRECTORY_SEPARATOR.$path : $path);

        return base_path($path);
    }
}

if (! function_exists('array_merge_sum')) {
    /**
     * 合并数组（相同键名相加）
     *
     * @param array $arr1
     * @param array $arr2
     * @return void
     */
    function array_merge_sum(...$arrays)
    {
        $array = [];

        foreach ($arrays as $item) {
            foreach ($item as $key => $value) {
                $array[$key] = isset($array[$key]) ? $array[$key] + $value : $value;
            }
        }

        return $array;
    }
}

if (! function_exists('human_filesize')) {
    /**
     * 文件大小可读性
     *
     * @param int $int
     * @param int $decimals
     * @param array $options
     * @return void
     */
    function human_filesize($int, $decimals = 2, array $options = [])
    {
        $size = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
        $factor = floor((strlen($int) - 1) / 3);

        $options = array_map('strtoupper', $options);

        if (isset($options['unit']) && array_search($options['unit'], $size) !== false) {
            for ($i=0; $i < array_search($options['unit'], $size); $i++) {
                unset($size[$i]);
            }

            $size = array_values($size);
        }

        if (isset($options['min']) && array_search($options['min'], $size) !== false) {
            $factor = $factor < array_search($options['min'], $size) ? array_search($options['min'], $size) : $factor;
        }

        if (isset($options['max']) && array_search($options['max'], $size) !== false) {
            $factor = $factor > array_search($options['max'], $size) ? array_search($options['max'], $size) : $factor;
        }

        return sprintf("%.{$decimals}f", $int / pow(1024, $factor)) . @$size[$factor];
    }
}