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。
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