55 lines
1.7 KiB
PHP
55 lines
1.7 KiB
PHP
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<?php
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/**
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* Created by PhpStorm.
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* User: xing
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* Date: 2017/12/31
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* Time: 1:47
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*/
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namespace App\Tools;
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use Illuminate\Http\File;
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class ImageUploadTool
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{
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// 只允许以下后缀名的图片文件上传
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protected $allowed_ext = ["png", "jpg", "gif", 'jpeg'];
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/**
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* @param $file File
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* @param $folder
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* @param $file_prefix
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* @return array|bool
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*/
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public function save($file, $folder, $file_prefix)
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{
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// 构建存储的文件夹规则，值如：uploads/images/avatars/201709/21/
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// 文件夹切割能让查找效率更高。
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$folder_name = "uploads/images/$folder/" . date("Ym", time()) . '/' . date("d", time()) . '/';
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// 文件具体存储的物理路径，`public_path()` 获取的是 `public` 文件夹的物理路径。
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// 值如：/home/vagrant/Code/larabbs/public/uploads/images/avatars/201709/21/
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$upload_path = public_path() . '/' . $folder_name;
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// 获取文件的后缀名，因图片从剪贴板里黏贴时后缀名为空，所以此处确保后缀一直存在
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$extension = strtolower($file->getClientOriginalExtension()) ?: 'png';
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// 拼接文件名，加前缀是为了增加辨析度，前缀可以是相关数据模型的 ID
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// 值如：1_1493521050_7BVc9v9ujP.png
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$filename = $file_prefix . '_' . time() . '_' . str_random(10) . '.' . $extension;
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// 如果上传的不是图片将终止操作
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if (!in_array($extension, $this->allowed_ext)) {
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return false;
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}
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// 将图片移动到我们的目标存储路径中
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$file->move($upload_path, $filename);
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return [
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'path' => config('app.url') . "/$folder_name/$filename"
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];
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}
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}
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