curl 文件上传

// 创建CURLFile对象
$cfile = curl_file_create('cats.jpg','image/jpeg','test_name');

// 分配提交的数据
$data = array('test_file' => $cfile);
curl_setopt($ch, CURLOPT_POST,1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);//...

   $ch = curl_init();
    // 上传多个
    $postFields = array(
        'file[0]' => new cURLFile($file1, $mimetype1, $basename1),
        'file[1]' => new cURLFile($file2, $mimetype2, $basename2)
    )
    
    curl_setopt($ch, CURLOPT_POSTFIELDS, $fields);

将@前缀文件名转为cURLFile

if(is_array($postfields) == true)
{
    foreach($postfields as $key => $value)
    {
        // 以@开头
        if(strpos($value, '@') === 0)
        {
            // 得到去掉@的文件名
            $filename = ltrim($value, '@');
            //转为CURLFile类
            $postfields[$key] = new CURLFile($filename);
        }
    }
}
curl_setopt($ch, CURLOPT_POSTFIELDS, $postfields);

//上传地址
$target="http://youraddress.tld/example/upload.php";
//面向过程的方式创建CURLFile 对象
$cfile1 = curl_file_create('resource/test.png','image/png','testpic');  

//面向对象 的方式创建CURLFile 对象
$cfile2 = new CURLFile('resource/test.png','image/png','testpic'); 

分配post提交的数据
$imgdata =[
    'myimage1' => $cfile1,
    'myimage2' => $cfile2
];
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $target);
//可选
curl_setopt($curl, CURLOPT_USERAGENT,'Opera/9.80 (Windows NT 6.2; Win64; x64) Presto/2.12.388 Version/12.15');
可选
curl_setopt($curl, CURLOPT_HTTPHEADER,array('User-Agent: Opera/9.80 (Windows NT 6.2; Win64; x64) Presto/2.12.388 Version/12.15','Referer: http://someaddress.tld','Content-Type: multipart/form-data'));

curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); // 停止验证证书
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);//将获取的信息以字符串返回 
curl_setopt($curl, CURLOPT_POST, true); // post请求
curl_setopt($curl, CURLOPT_POSTFIELDS, $imgdata); // 提交
//可选
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true); // 上传后有重定向
$r = curl_exec($curl); 
curl_close($curl);

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