PHP答题类应用接口实例_PHP

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：

<?php  <br />session_cache_expire(60);  <br />session_start();  <br />if(!isset($_SESSION['zaszh_user_id'])){  <br />    echo json_encode(array('status'=>'error','msg'=>'连接超时，请重新打开页面。'));  <br />    exit;  <br />}  <br />$user_id = $_SESSION['zaszh_user_id'];  <br />  <br />// $user_id = 1; // 测试用  <br />  <br />// 随机获取5道问题  <br />$question_id = array();  <br />while(sizeof($question_id)<5){  <br />    $num_rand = mt_rand(1,114);  <br />    if(!in_array($num_rand, $question_id))  <br />        $question_id[] = $num_rand;  <br />}  <br />  <br />require('connect_database.php');  <br />// 答题次数  <br />$mysqli->query("update zaszh_user set answer_surplus=answer_surplus-1 where<strong>（本文来源gaodai#ma#com搞@@代~&码网</strong><pre>搞代gaodaima码

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。

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