七牛整合PHP上传文件

七牛整合php上传文件七牛支持抓取远程图片 API，用 access_key + secret_key + url 生成 access_token, 把 access_token 加在 header 里，然后向 post url 就完成上传了。Sample code:<?php/***@descURL安全形式的base64编码*@paramstring$str*@returnstring*/functionurlsafe_base64_encode($str){$find=array("+","/");$replace=array("-","_");returnstr_replace($find,$replace,base64_encode($str));}/***generate_access_token**@desc签名运算*@paramstring$access_key*@paramstring$secret_key*@paramstring$url*@paramarray$params*@returnstring*/functiongenerate_access_token($access_key,$secret_key,$url,$params=''){$parsed_url=parse_url($url);$path=$parsed_url['path'];$access=$path;if(isset($parsed_url['query'])){$access.="?".$parsed_url['query'];}$access.="\n";if($params){if(is_array($params)){$params=http_build_query($params);}$access.=$params;}$digest=hash_hmac('sha1',$access,$secret_key,true);return$access_key.':'.urlsafe_base64_encode($digest);}/***测试*/$access_key='''youraccess_key';$secret_key='yoursecret_key';$fetch=urlsafe_base64_encode('http://203.208.46.200/images/srPR/logo11w.png');$to=urlsafe_base64_encode('ibeircn:11.jpg');$url='http://iovip.qbox.me/fetch/'.$fetch.'/to/'.$to;$access_token=generate_access_token($access_key,$secret_key,$url);$header[]='Content-Type:application/json';$header[]='Authorization:QBox'.$access_token;$con=send('iovip.qbox.me/fetch/'.$fetch.'/to/'.$to,$header);var_dump($con);functionsend($url,$header=''){$curl=curl_init($url);curl_setopt($curl,CURLOPT_RETURNTRANSFER,1);curl_setopt($curl,CURLOPT_HEADER,1);curl_setopt($curl,CURLOPT_HTTPHEADER,$header);curl_setopt($curl,CURLOPT_POST,1);$con=curl_exec($curl);if($con===false){echo'CURLERROR:'.curl_error($curl);}else{return$con;}}?> 来源：<https://app.yinxiang.com/Home.action>