PHP答题类应用接口实例

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：复制代码 代码如下:<?php  session_cache_expire(60);  session_start();  if(!isset($_SESSION["zaszh_user_id"])){      echo json_encode(array("status"=>"error","msg"=>"连接超时，请重新打开页面。"));      exit;  }  $user_id = $_SESSION["zaszh_user_id"];    // $user_id = 1; // 测试用    // 随机获取5道问题  $question_id = array();  while(sizeof($question_id)<5){      $num_rand = mt_rand(1,114);      if(!in_array($num_rand, $question_id))          $question_id[] = $num_rand;  }    require("connect_database.php");  // 答题次数  $mysqli->query("update zaszh_user set answer_surplus=answer_surplus-1 where id={$user_id} and answer_surplus>0");  if($mysqli->affected_rows){      // 有剩余次数  }else{      // 无剩余次数      echo json_encode(array("status"=>"error","msg"=>"今日答题剩余次数已用完，明天再来哦~"));      $mysqli->close();      exit;  }  // 题目  if($stmt = $mysqli->prepare("select question,A,B,C,D,answer from zaszh_question where id in(?,?,?,?,?)")){      $stmt->bind_param("iiiii",$question_id[0],$question_id[1],$question_id[2],$question_id[3],$question_id[4]);      $stmt->execute();      $stmt->bind_result($question,$A,$B,$C,$D,$answer);      $rows = array();      while($stmt->fetch()){          $rows[] = array(              "question"=>$question,              "A"=>$A,              "B"=>$B,              "C"=>$C,              "D"=>$D,              "answer"=>$answer          );      }      // 答题记录      if($stmt = $mysqli->prepare("insert into zaszh_answer(user_id,question1,question2,question3,question4,question5,create_date) values(?,?,?,?,?,?,unix_timestamp(now()))")){          $stmt->bind_param("iiiiii",$user_id,$question_id[0],$question_id[1],$question_id[2],$question_id[3],$question_id[4]);          $stmt->execute();          if($answer_id = $stmt->insert_id){              $param = array(                  "answer_id"=>$answer_id              );              echo json_encode(array_merge($rows,$param));          }else{              echo json_encode(array("status"=>"error","msg"=>"系统出错。"));          }      }      $stmt->close();  }  $mysqli->close();

希望本文所述对大家的php程序设计有所帮助。