php 微信接口API之长链接转短链接代码示例

1. <?php
2. header("Content-Type: text/html; charset=utf-8");
3. $longurl;
4. if(isset($_POST['longurl'])){
5. $longurl = $_POST['longurl'];
6. }else{
7. die("没有post值进来");
8. }
9. //echo $longurl;
10. $id = "你的AppID";
11. $secret = "你的AppSecret";
12. $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$id."&secret=".$secret."";
13. $token = getAccessToken($url);
14. //echo $token;
15. //你的长链接
16. //$longurl = "http://www.baidu.com/";
17. $data = '{"action":"long2short","long_url":"'.$longurl.'"}';
18. $shorturl = "https://api.weixin.qq.com/cgi-bin/shorturl?access_token=".$token."";
19. echo httpPost($shorturl,$data);
20. //echo "你的长链接是：".$longurl;
21. //echo "<br />";
22. //生成的短链接
23. //echo "生成的短链接是：".$shortArr['short_url'];
24. //echo $shortArr;
25. function getAccessToken($url) {
26. // access_token 应该全局存储与更新，以下代码以写入到文件中做示例
27. $data = json_decode(file_get_contents("access_token.json"));
28. if ($data->expire_time < time()) {
29. // 如果是企业号用以下URL获取access_token
30. $output = httpGet($url);
31. $res = (array)json_decode($output);
32. $access_token = $res['access_token'];
33. if ($access_token) {
34. $data->expire_time = time() + 7000;
35. $data->access_token = $access_token;
36. $fp = fopen("access_token.json", "w");
37. fwrite($fp, json_encode($data));
38. fclose($fp);
39. //echo 'access_token.json读写了一次';
40. }
41. } else {
42. $access_token = $data->access_token;
43. }
44. return $access_token;
45. }
46. function httpGet($url) {
47. //echo "url = ".$url;
48. $curl = curl_init();
49. curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
50. curl_setopt($curl, CURLOPT_TIMEOUT, 500);
51. curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
52. curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
53. curl_setopt($curl, CURLOPT_URL, $url);
54. $res = curl_exec($curl);
55. curl_close($curl);
56. return $res;
57. }
58. function httpPost($url,$data){
59. $curl = curl_init();
60. curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
61. curl_setopt($curl, CURLOPT_TIMEOUT, 500);
62. curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
63. curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
64. curl_setopt($curl, CURLOPT_URL, $url);
65. curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "POST");
66. curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
67. $res = curl_exec($curl);
68. curl_close($curl);
69. return $res;
70. }
71. ?>