PHP答题类应用接口实例，php答题接口实例

PHP答题类应用接口实例，php答题接口实例_PHP教程

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Freigeben： 2016-07-13 10:07:27

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PHP答题类应用接口实例，php答题接口实例

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:

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)     $num_rand = mt_rand(1,114);
    if(!in_array($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。