七牛整合PHP上传文件，_PHP教程

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:

2. /*
3. *
4. * @desc URL安全形式的base64编码
5. * @param string $str
6. * @return string
7. */
10. function urlsafe_base64_encode($str){
11. $find = array("+","/");
12. $replace = array("-", "_");
13. return str_replace($find, $replace, base64_encode($str));
14. }
16. /**
17. * generate_access_token
18. *
19. * @desc 签名运算
20. * @param string $access_key
21. * @param string $secret_key
22. * @param string $url
23. * @param array $params
24. * @return string
25. */
26. function generate_access_token($access_key, $secret_key, $url, $params = ''){
27. $parsed_url = parse_url($url);
28. $path = $parsed_url['path'];
29. $access = $path;
30. if (isset($parsed_url['query'])) {
31. $access .= "?" . $parsed_url['query'];
32. }
33. $access .= "\n";
34. if($params){
35. if (is_array($params)){
36. $params = http_build_query($params);
37. }
38. $access .= $params;
39. }
40. $digest = hash_hmac('sha1', $access, $secret_key, true);
41. return $access_key.':'.urlsafe_base64_encode($digest);
42. }
44. /**
45. * 测试
46. */
48. $access_key = '''your access_key';
49. $secret_key = 'your secret_key';
51. $fetch = urlsafe_base64_encode('http://203.208.46.200/images/srpr/logo11w.png');
52. $to = urlsafe_base64_encode('ibeircn:11.jpg');
54. $url = 'http://iovip.qbox.me/fetch/'. $fetch .'/to/' . $to;
56. $access_token = generate_access_token($access_key, $secret_key, $url);
58. $header[] = 'Content-Type: application/json';
59. $header[] = 'Authorization: QBox '. $access_token;
62. $con = send('iovip.qbox.me/fetch/'.$fetch.'/to/'.$to, $header);
63. var_dump($con);
65. function send($url, $header = '') {
66. $curl = curl_init($url);
67. curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
68. curl_setopt($curl, CURLOPT_HEADER,1);
69. curl_setopt($curl, CURLOPT_HTTPHEADER, $header);
70. curl_setopt($curl, CURLOPT_POST, 1);
72. $con = curl_exec($curl);
74. if ($con === false) {
75. echo 'CURL ERROR: ' . curl_error($curl);
76. } else {
77. return $con;
78. }
79. }
80. ?>
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