模拟php curl向远程服务器上传文件

test.php

<?php
    header('content-type:text/html;charset=utf8');

    $file = dirname(__FILE__).'/1.jpg';
    $data['img'] = new CurlFile($file);
    $url = "http://localhost/test/img/get_img.php";
    
    $ch = curl_init();
    curl_setopt($ch,CURLOPT_URL, $url);
    curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
    curl_setopt($ch,CURLOPT_POST,true);
    curl_setopt($ch,CURLOPT_POSTFIELDS,$data);
    $result = curl_exec($ch);
    curl_close($ch);
    
    echo json_decode($result);
?>

get_img.php

<?php
    if($_FILES)
    {
        file_put_contents('img.txt', json_encode($_FILES));//记录log
        $filename = $_FILES['img']['name'];
        $tmpname = $_FILES['img']['tmp_name'];
        if (move_uploaded_file($tmpname,dirname(__FILE__).'/upload/'.$filename))
        {
            echo json_encode('上传成功');
        }else{
            $data = json_encode($_FILES);
            echo $data;
        }
    }

访问test.php时将会显示“上传成功”，且upload文件夹下会生成1.jpg图片文件