这篇文章主要介绍了PHP答题类应用接口,以实例形式详细分析了答题类程序的实现思路与相关技巧,并备有较为详尽的注释说明,便于理解,需要的朋友可以参考下。

本文实例讲述了PHP答题类应用接口的实现方法，分享给大家供大家参考，具体实现方法如下：

question_get.php文件如下：

1. <?php
2. session_cache_expire(60);
3. session_start();
4. if(!isset($_SESSION['zaszh_user_id'])){
5. echo json_encode(array('status'=>'error','msg'=>'连接超时，请重新打开页面。'));
6. exit;
7. }
8. $user_id = $_SESSION['zaszh_user_id'];
9. // $user_id = 1; // 测试用
10. // 随机获取5道问题
11. $question_id = array();
12. while(sizeof($question_id)<5){
13. $num_rand = mt_rand(1,114);
14. if(!in_array($num_rand, $question_id))
15. $question_id[] = $num_rand;
16. }
17. require('connect_database.php');
18. // 答题次数
19. $mysqli->query("update zaszh_user set answer_surplus=answer_surplus-1 where );
20. if($mysqli->affected_rows){
21. // 有剩余次数
22. }else{
23. // 无剩余次数
24. echo json_encode(array('status'=>'error','msg'=>'今日答题剩余次数已用完，明天再来哦~'));
25. $mysqli->close();
26. exit;
27. }
28. // 题目
29. if($stmt = $mysqli->prepare("select question,A,B,C,D,answer from zaszh_question where id in(?,?,?,?,?)")){
30. $stmt->bind_param('iiiii',$question_id[0],$question_id[1],$question_id[2],$question_id[3],$question_id[4]);
31. $stmt->execute();
32. $stmt->bind_result($question,$A,$B,$C,$D,$answer);
33. $rows = array();
34. while($stmt->fetch()){
35. $rows[] = array(
36. 'question'=>$question,
37. 'A'=>$A,
38. 'B'=>$B,
39. 'C'=>$C,
40. 'D'=>$D,
41. 'answer'=>$answer
42. );
43. }
44. // 答题记录
45. if($stmt = $mysqli->prepare("insert into zaszh_answer(user_id,question1,question2,question3,question4,question5,create_date) values(?,?,?,?,?,?,unix_timestamp(now()))")){
46. $stmt->bind_param('iiiiii',$user_id,$question_id[0],$question_id[1],$question_id[2],$question_id[3],$question_id[4]);
47. $stmt->execute();
48. if($answer_id = $stmt->insert_id){
49. $param = array(
50. 'answer_id'=>$answer_id
51. );
52. echo json_encode(array_merge($rows,$param));
53. }else{
54. echo json_encode(array('status'=>'error','msg'=>'系统出错。'));
55. }
56. }
57. $stmt->close();
58. }
59. $mysqli->close();