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>
<"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']"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 = $row["score"];
  }
"tiku">
  <form action="check.php" method="get">
    <p><"radio" name="xuanxiang" value="<">A:<"radio" name="xuanxiang" value="<">B:<"radio" name="xuanxiang" value="<">C:<"radio" name="xuanxiang" value="<">D:<"hidden" name="id" value="<">
    <button>提交</button>
  </form>
</div>
  <br/>
  <"<div id='tiku'>";
    echo "<ul>";
      echo "<li><a href='next.php";
      echo "<li><a href='next.php";
    echo "</ul>";
  echo "<div>";
  echo "<br/>";
  echo "<p class='fenye_tips'>共".$allpage."道题,当前是第".$page."题</p>";
  echo "<br/><br/>";
  echo "</div>";
  "htmlcode">
<"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";
    }else{
      echo "<script>alert('错了!扣5分!');history.go(-1);</script>";
    }
  }
}
"htmlcode">
<"数据库地址";
$username="账号";
$password="密码";
$db="数据库名";
$tb = "表名";
"htmlcode">
<!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>
<"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']"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 = $row["score"];
  }
"tiku">
  <form action="check.php" method="get">
    <p><"radio" name="xuanxiang" value="<">A:<"radio" name="xuanxiang" value="<">B:<"radio" name="xuanxiang" value="<">C:<"radio" name="xuanxiang" value="<">D:<"hidden" name="id" value="<">
    <button>提交</button>
  </form>
</div>
  <br/>
  <"<div id='tiku'>";
    echo "<ul>";
      echo "<li><a href='next.php";
      echo "<li><a href='next.php";
    echo "</ul>";
  echo "<div>";
  echo "<br/>";
  echo "<p class='fenye_tips'>共".$allpage."道题,当前是第".$page."题</p>";
  echo "<br/><br/>";
  echo "</div>";
  "//img.jbzj.com/file_images/article/201903/201933004535566.png" alt="" />

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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