php+mysql开发的最简单在线题库(在线做题系统)完整案例

时间:2022-07-27
本文章向大家介绍php+mysql开发的最简单在线题库(在线做题系统)完整案例,主要内容包括其使用实例、应用技巧、基本知识点总结和需要注意事项,具有一定的参考价值,需要的朋友可以参考一下。

本文实例讲述了php+mysql开发的最简单在线题库。分享给大家供大家参考,具体如下:

题库,对于教育机构,学校,在线教育,是很有必要的,网上也有不少的第三方在线题库系统,但是本次案例,会让有需要的人了解题库的开发思路,其实很简单,无非就是一个表单验证,数据库验证。

1、先构建表单数据

2、把表单数据通过get或者post方式提交到表单验证页面,和数据库进行匹配

3、返回结果,答案正确或者错误

构建表单:

index.php

<!DOCTYPE html 
<html 
<head 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" 
<meta http-equiv="X-UA-Compatible" content="IE=edge" 
<meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,user-scalable=0" / 
<meta name="apple-mobile-web-app-capable" content="yes" 
<meta name="apple-mobile-web-app-status-bar-style" content="black" 
<meta name="format-detection" content="telephone=no" 
<title 题库</title 
<style type="text/css" 
*{list-style: none;margin:0px;padding: 0px;}
#tiku{
width: 300px;
margin:10px auto;
}
#tiku ul li{
float: left;
}
</style 
</head 
<body 
<?php
//获取数据库配置
require_once("config.php");
//连接数据库
$con = mysql_connect($host,$username,$password);
//设置数据库字符集 
mysql_query("SET NAMES UTF8");
//查询数据库
mysql_select_db($db, $con);
//查询数据库
//获取最新的1条数据
$all = mysql_num_rows(mysql_query("select * from $tb"));
//定义分页所需的参数
$lenght=1;               //每页显示的数量
@$page=$_GET['page']?$_GET['page']:1;  //当前页
$offset=($page-1)*$lenght;       //每页起始行编号
$allpage=ceil($all/$lenght);      //所有的页数-总数页
$prepage=$page-1;            //上一页    
if($page==1){
$prepage=1;             //特殊的是当前页是1时上一页就是1
}
$nextpage=$page+1;
if($page==$allpage){
$nextpage=$allpage;        //特殊的是最后页是总数页时下一页就是总数页
}
$sql="select * from $tb order by id ASC limit {$offset},{$lenght}";
$rest=mysql_query($sql);
while($row = mysql_fetch_assoc($rest))
{
$id = $row["id"];
$title = $row["title"];
$A = $row["answer_A"];
$B = $row["answer_B"];
$C = $row["answer_C"];
$D = $row["answer_D"];
$true = $row["true"];
$score = $row["score"];
}
? 
<div id="tiku" 
<form action="check.php" method="get" 
<p <?php echo $title;? </p 
<input type="radio" name="xuanxiang" value="<?php echo $A;? " A:<?php echo $A;? <br 
<input type="radio" name="xuanxiang" value="<?php echo $B;? " B:<?php echo $B;? <br 
<input type="radio" name="xuanxiang" value="<?php echo $C;? " C:<?php echo $C;? <br 
<input type="radio" name="xuanxiang" value="<?php echo $D;? " D:<?php echo $D;? <br <br 
<input type="hidden" name="id" value="<?php echo $id;? " 
<button 提交</button 
</form 
</div 
<br/ 
<?php
echo "<div id='tiku' ";
echo "<ul ";
echo "<li <a href='next.php?page=$prepage' 上一题</a </li ";
echo "<li <a href='next.php?page=$nextpage' 下一题</a </li ";
echo "</ul ";
echo "<div ";
echo "<br/ ";
echo "<p class='fenye_tips' 共".$allpage."道题,当前是第".$page."题</p ";
echo "<br/ <br/ ";
echo "</div ";
? 
</body 
</html 

表单接收

check.php

<?php
header("Content-type:text/html;charset=utf-8");
//获取数据库配置
require_once("config.php");
//连接数据库
$con = mysql_connect($host,$username,$password);
//设置数据库字符集 
mysql_query("SET NAMES UTF8");
//查询数据库
mysql_select_db($db, $con);
//获取数据
$xuanxiang = $_GET["xuanxiang"];
$id = $_GET["id"];
if (empty($xuanxiang)) {
echo "<script alert('请选择一个答案!');history.go(-1);</script ";
}else{
//查询数据库
$result = mysql_query("SELECT * FROM $tb WHERE id =".$id);
while($row = mysql_fetch_array($result))
{
$true = $row["true"];
$next_id = $id+1;
if($xuanxiang == $true){
echo "<script alert('正确!得5分!');location.href='next.php?page=$next_id';</script ";
}else{
echo "<script alert('错了!扣5分!');history.go(-1);</script ";
}
}
}
? 

数据库配置

config.php

<?php
//配置文件 - BY TANKING
$host="数据库地址";
$username="账号";
$password="密码";
$db="数据库名";
$tb = "表名";
? 

next.php

下一题

<!DOCTYPE html 
<html 
<head 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" 
<meta http-equiv="X-UA-Compatible" content="IE=edge" 
<meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,user-scalable=0" / 
<meta name="apple-mobile-web-app-capable" content="yes" 
<meta name="apple-mobile-web-app-status-bar-style" content="black" 
<meta name="format-detection" content="telephone=no" 
<title 题库</title 
<style type="text/css" 
*{list-style: none;margin:0px;padding: 0px;}
#tiku{
width: 300px;
margin:10px auto;
}
#tiku ul li{
float: left;
}
</style 
</head 
<body 
<?php
//获取数据库配置
require_once("config.php");
//连接数据库
$con = mysql_connect($host,$username,$password);
//设置数据库字符集 
mysql_query("SET NAMES UTF8");
//查询数据库
mysql_select_db($db, $con);
//查询数据库
//获取最新的1条数据
$all = mysql_num_rows(mysql_query("select * from $tb"));
//定义分页所需的参数
$lenght=1;               //每页显示的数量
@$page=$_GET['page']?$_GET['page']:1;  //当前页
$offset=($page-1)*$lenght;       //每页起始行编号
$allpage=ceil($all/$lenght);      //所有的页数-总数页
$prepage=$page-1;            //上一页    
if($page==1){
$prepage=1;             //特殊的是当前页是1时上一页就是1
}
$nextpage=$page+1;
if($page==$allpage){
$nextpage=$allpage;        //特殊的是最后页是总数页时下一页就是总数页
}
$sql="select * from $tb order by id ASC limit {$offset},{$lenght}";
$rest=mysql_query($sql);
while($row = mysql_fetch_assoc($rest))
{
$id = $row["id"];
$title = $row["title"];
$A = $row["answer_A"];
$B = $row["answer_B"];
$C = $row["answer_C"];
$D = $row["answer_D"];
$true = $row["true"];
$score = $row["score"];
}
? 
<div id="tiku" 
<form action="check.php" method="get" 
<p <?php echo $title;? </p 
<input type="radio" name="xuanxiang" value="<?php echo $A;? " A:<?php echo $A;? <br 
<input type="radio" name="xuanxiang" value="<?php echo $B;? " B:<?php echo $B;? <br 
<input type="radio" name="xuanxiang" value="<?php echo $C;? " C:<?php echo $C;? <br 
<input type="radio" name="xuanxiang" value="<?php echo $D;? " D:<?php echo $D;? <br <br 
<input type="hidden" name="id" value="<?php echo $id;? " 
<button 提交</button 
</form 
</div 
<br/ 
<?php
echo "<div id='tiku' ";
echo "<ul ";
echo "<li <a href='next.php?page=$prepage' 上一题</a </li ";
echo "<li <a href='next.php?page=$nextpage' 下一题</a </li ";
echo "</ul ";
echo "<div ";
echo "<br/ ";
echo "<p class='fenye_tips' 共".$allpage."道题,当前是第".$page."题</p ";
echo "<br/ <br/ ";
echo "</div ";
? 
</body 
</html 

数据库结构

title ——–题目 answer_A —–答案A answer_B —–答案B answer_C —–答案C answer_D —–答案D true ———正确答案 score ——–得分

更多关于PHP相关内容感兴趣的读者可查看本站专题:《php+mysql数据库操作入门教程》、《php+mysqli数据库程序设计技巧总结》、《php面向对象程序设计入门教程》、《PHP数组(Array)操作技巧大全》、《php字符串(string)用法总结》及《php常见数据库操作技巧汇总》

希望本文所述对大家PHP程序设计有所帮助。