[PHP] CURL文件上传

谢国华 發表於 2019-9-2 08:43:00

一、说明
　　本文主要简述CURL进行文件上传的一般操作，基于TP5框架；
　　
二、前端
　　代码如下，需要填入对应的上传地址还有修改接收的参数名字(这里是 file)：
<div class="cnblogs_code">
<pre> <formaction="上传地址"method="post" enctype="multipart/form-data">
 <input type="file" name="file">
 <button type="submit">上传</button>
</form></pre>
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三、后端
　　下面是基于TP5的上传处理，通过CURL上传到另外一台服务器上。
<div class="cnblogs_code">
<pre> 1 <?php
 2 namespace app\controller;
 3
 4 use think\Controller;
 5
 6 //文件上传类
 7 class Upload extends Controller
 8 {
 9 protected $file_size = 20971520;//20M
10 protected $file_type = ["png", "jpg", "jpeg", "gif"];
11 protected $ret = ['code'=>0, 'msg'=>'', 'data'=>[]];
12 private $uploadUrl = "http://xxx.com";//上传地址
13
14 public function doit()
15 {
16 try{
17 $verify = $file->validate(['size'=>$this->file_size,'ext'=>$this->file_type]);
18 if (!$verify) {
19 throw new \Exception('上传的文件大小超过20M, 或文件类型不正确');
20 }
21
22 $ext = pathinfo($file->getInfo('name'))['extension'];
23 $tm = time();
24 $mime = $file->getInfo('type');
25
26 //表单请求参数
27 $postData = [
28 'file' => new \CURLFile(realpath($file->getPathname()), $mime, $fileName.".{$ext}"),
29 ];
30
31 $curlRes = $this->curlUploadFile($this->uploadUrl, $postData);
32 $res = json_decode($curlRes, true);
33
34 if($res['code'] == 200 && $res['data']['filePath'] != ""){
35 $this->ret['code'] = 200;
36 $this->ret['msg'] = '文件上传成功';
37 $this->ret['data'] = ['filePath' => $res['data']['filePath']];
38 }else{
39 throw new \Exception('上传文件失败: '.$res['msg'], 500);
40 }
41 }catch(\Exception $ex){
42 //异常处理
43 $this->ret['code'] = 500;
44 $this->ret['msg'] = $ex->getMessage();
45 }
46 return json($this->ret);//返回json
47 }
48
50
51 //CURL文件上传
52 private function curlUploadFile($url, $data)
53 {
54 $curl = curl_init();
55 if (class_exists('\CURLFile')) {
56 curl_setopt($curl, CURLOPT_SAFE_UPLOAD, true);
57 //$data = array('file' => new \CURLFile(realpath($path)));//>=5.5
58 } else {
59 if (defined('CURLOPT_SAFE_UPLOAD')) {
60 curl_setopt($curl, CURLOPT_SAFE_UPLOAD, false);
61 }
62 //$data = array('file' => '@' . realpath($path));//<=5.5
63 }
64 curl_setopt($curl, CURLOPT_URL, $url);
65 curl_setopt($curl, CURLOPT_POST, 1 );
66 curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
67 curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
68 $result = curl_exec($curl);
69 $error = curl_error($curl);
70
71 curl_close($curl);
72
73 return $result;
74 }
75 }</pre>
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来源：https://www.cnblogs.com/reader/p/11444608.html

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[PHP] CURL文件上传