php把文件上传到远程服务器上例子

<?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);
?>

远程服务器接受端代码：
<?php
    if($_FILES)
    {
        $filename = $_FILES['img']['name'];
        $tmpname = $_FILES['img']['tmp_name'];
        if(move_uploaded_file($tmpname, dirname(__FILE__).'/img/'.$filename))
        {
            echo json_encode('上传成功');
        }
        else
        {
            $data = json_encode($_FILES);
            echo $data;
        }
    }
?>