[PHP知识库]php获取远程地址文件数据返回前端直接下载

php下载远程文件，不用转存，直接可以下载

    	$curl = curl_init();
        curl_setopt($curl, CURLOPT_URL, 'https://www.test.com/code/1628152546955588895.jpg');
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        $data = curl_exec($curl);
        curl_close($curl);

        ob_end_clean();//清除缓冲，不然会下载不成功
        //给下载的文件命名
		$fileName = mt_rand() . '.jpg';
        header('Content-Type: application/octet-stream');
        header('Accept-Ranges:bytes');
        header('Content-Disposition:attachment;filename=' . $fileName);
        echo $data;
        exit;