七牛php上传下载类，集成官方文档的方法

<?php
use Qiniu\Auth;
use Qiniu\Storage\UploadManager;
class qiniu
{
public $_accesskey = null;
public $_secretKey =null;
public $_bucket =null;
/**
* 构造函数
*
* @access public
* @param string $tpl
* @return void
*/
function __construct($accesskey=null,$secretKey=null,$bucket =null)
{
$this->_accesskey=$accesskey;
$this->_secretKey=$secretKey;
$this->_bucket=$bucket;
}
function gettoken(){

$auth = new Auth($this->_accessKey, $this->_secretKey);
$bucket = $this->_bucket;
$token = $auth->uploadToken($bucket);
return $token;
}
function uploadstring($string){
//$string是字符串

$auth = new Auth($this->_accesskey, $this->_secretKey);
$bucket = $this->_bucket;
// 设置put policy的其他参数, 上传回调
//$opts = array(
// 'callbackUrl' => 'http://www.callback.com/',
// 'callbackBody' => 'name=$(fname)&hash=$(etag)'
// );
//$token = $auth->uploadToken($bucket, null, 3600, $opts);

$token = $auth->uploadToken($bucket);
$uploadMgr = new UploadManager();

list($ret, $err) = $uploadMgr->put($token, null, $string);
echo "\n====> put result: \n";
if ($err !== null) {
return $err;
} else {
return $ret;
}
}
function uploadfile($file=null){
//$file是文件路径

$token = $auth->uploadToken($bucket);
$uploadMgr = new UploadManager();
list($ret, $err) = $uploadMgr->putFile($token, null, $file);
if ($err !== null) {
return $err;
} else {
return $ret;
}
}
function download($resource,$filecode,$tosource=null,filename="file"){

//$resource是bucket的网址，$filecode是文件的码，$tosource是要下载的文件夹路径
$auth = new Auth($this->_accesskey, $this->_secretKey);
$baseUrl = $resource.'/'.$filecode;
$authUrl = $auth->privateDownloadUrl($baseUrl);
$this->download_remote_file_with_curl($authUrl, $tosource.time().$filename);
return $authUrl;
}
function download_remote_file_with_curl($file_url, $save_to)
{
$ch = curl_init();
curl_setopt($ch, CURLOPT_POST, 0);
curl_setopt($ch,CURLOPT_URL,$file_url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$file_content = curl_exec($ch);
curl_close($ch);

$downloaded_file = fopen($save_to, 'w');
fwrite($downloaded_file, $file_content);
fclose($downloaded_file);
}
}

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七牛php上传下载类，集成官方文档的方法

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