对于测验我正在从表格中获取一些随机问题并在网页上显示问题（一次一个问题）。 现在，通过计算所提取的问题，我将从1开始显示数字作为标签。
即。假设我已经提取了10个问题，那么它将显示标签为1 2 3 4 5 6 7 8 9 10.并且当前在网页上显示的问题将突出显示选项卡。
我的问题是如何将这些标签设为链接，这样当我点击该标签时，它会在网页上显示该问题。
查看：
<div id="container">
<?php echo "<br />" ?>
<?php
$attributes=array('id'=>'testForm');
echo form_open('attemptTest/getquestion/',$attributes);
?>
<div id="body">
<?php
$totq=explode(",",$test['random_question_no']);
$totq=array_sum($totq);
$totalQuestions=array_sum(explode(",",$test['random_question_no']));
$selected_answers=explode(',',$result['selected_answers']);
$selected_answers=$selected_answers[$qno-1];
?>
<input type="hidden" name="qno" value="<?=$qno?>" id="qno">
<input type="hidden" name="direction" value="N" id="direction">
<input type="hidden" name="submitTest" value="0" id="submitTest">
<input type="hidden" name="time1" value="<?php $time_taken=explode(',',$result['time_taken']); echo (array_sum($time_taken)+$result['iniTime']);?>" >
<code><table><tr><td valign="top" >Q<?=$qno?>) </td><td style="word-break: break-word;"><?=$question['question']?></td></tr></table></code>
<?php $option=explode(',',$question['options']);
foreach($option as $option){
$ans="ans".$qno;
?>
<div id="qoption">
<table><tr><td style="width:18px;" valign=top ><input type="radio" value="<?=$option?>" name="answer" <?php if($selected_answers==$option){ echo "checked";} ?> > </td><td><?=$option?></td></tr></table>
</div>
<?php
}
?>
<br/>
<table><tr><td><?php if($qno>="2"){ ?><div class="big_button" style="width:70px;"><center><a href="javascript:document.getElementById('direction').value='B';document.getElementById('testForm').submit();" id="big_button" >Back</a></center></div><?php } ?></td><td> </td><td>
<?php if($qno<$totalQuestions){ ?><div class="big_button" style="width:70px;"><center><a href="javascript:document.getElementById('testForm').submit();" id="big_button">Next</a></center></div> <?php } ?>
</td><td> </td>
<td>
<div class="big_button" style="width:120px;"><center>
<a href="javascript:document.getElementById('submitTest').value='1';document.getElementById('testForm').submit();" id="big_button">Submit Test</a>
</center></div>
</td></tr></table>
<br/>
</div></div>
<table id="all_questions">
<tr>
<?php $i=0; foreach($questions_all as $key=>$value){$i++;?>
<td class="<?php if($qno==$key+1){echo "active ";}?> <?php if(isset($_COOKIE['answered_'.$value])){if($_COOKIE['answered_'.$value]!=0){ echo "green";}} ?>" ><?=$key+1?></td><?php if($i==4){$i=0; echo "</tr><tr>";}?>
<?php }?>
</tr>
</table>
<style>
#all_questions td{
width:40px;
height:40px;
border-radius:3px;
margin:5px;
text-align:center;
vertical-align:middle;
}
.active {
background-color:red;
}
.green {
background-color:green;
}
</style>
控制器：
<?php
class attemptTest extends CI_Controller {
public function __construct()
{
parent::__construct();
$this->load->model('test_model');
$this->load->model('attempt_model');
$this->load->helper('html');
$this->load->helper('url');
$this->load->library('session');
// if not logged in redirect
if(($this->session->userdata('logged_in'))!='TRUE'){ redirect('login'); }
}
public function index($tid='',$access_token='0')
{
$this->load->helper('cookie');
$this->load->library('form_validation');
// if test cookies exist bypass to getquestion function
if(isset($_COOKIE['tid']) && isset($_COOKIE['qids']) && isset($_COOKIE['resultid']) && isset($_COOKIE['qno']) && isset($_COOKIE['access_token']))
{
$this->getquestion($_COOKIE['qno'],$_COOKIE['qids'],$_COOKIE['tid']);
}
else
{
// else started new test so check access token cookie exist for test if not redirect
if(!isset($_COOKIE['access_token'])){
redirect('test/view/'.$tid);
}
// getting test data
$data['test'] = $this->test_model->get_test($tid,'0');
// getting multi dimensonal arrays of question ids which are going to assign user
$data['qids'] = $this->attempt_model->get_questions_id($data['test']);
// make one dimensonal array
$qid=array();
foreach($data['qids'] as $question)
{
$qid[]=$question['qid'];
}
// convert array into string
$qids=implode(",",$qid);
// insert result row
$data['resultid']=$this->attempt_model->insert_result_row($data['test'],$qids);
// creating required cookies
$cookie = array('name'=>'resultid','value'=>$data['resultid'],'expire'=>'86500');
$this->input->set_cookie($cookie);
$cookie = array('name'=>'qids','value'=>$qids,'expire'=>'86500');
$this->input->set_cookie($cookie);
$cookie = array('name'=>'tid','value'=>$data['test']['tid'],'expire'=>'86500');
$this->input->set_cookie($cookie);
$cookie = array('name'=>'qno','value'=>'0','expire'=>'86500');
$this->input->set_cookie($cookie);
$this->getquestion('0',$qids,$tid,$data['resultid']);
}
}
public function getquestion($qno=0,$qids=0,$tid=0,$resultid=0)
{
if(!isset($_COOKIE['access_token'])){
redirect('index');
}
$this->load->helper('cookie');
$this->load->library('form_validation');
//define question ids
if(isset($_COOKIE['qids'])){
$qids=$_COOKIE['qids'];
}else{
$qids=$qids;
}
$eqid=explode(",",$qids);
//addition od code by vivek
$data['questions_all'] = $eqid;
//define test id
if(isset($_COOKIE['tid'])){
$tid=$_COOKIE['tid'];
}else{
$tid=$tid;
}
if(isset($_COOKIE['resultid'])){
$resultid=$_COOKIE['resultid'];
}
$iniTime = $this->attempt_model->get_result($resultid);
$test_time = $this->test_model->get_test($tid,'0');
// check time
if(((($test_time['test_time']*60)-(time()-$iniTime['iniTime']))<="0") || ((time())>($test_time['end_time']))){
$this->submit('Time Over');
return;
}
// define question no.
if(isset($_POST['qno'])){
$qno=$_POST['qno'];
$pqid=$eqid[$qno-1];
if(isset($_POST['answer'])){
$answer=$_POST['answer'];
$time1=$_POST['time1'];
}else{ $answer='NULL'; $time1=$_POST['time1']; }
$this->attempt_model->submit_answer($_COOKIE['resultid'],$qno,$_COOKIE['tid'],$pqid,$answer,$time1);
}
if(isset($_POST['submitTest']))
{
if($_POST['submitTest']=='1')
{
$this->submit();
return;
}
}
// next question
if(isset($_POST['direction']))
{
// if direction is for next question add one
if($_POST['direction']=='N'){
$data['qno']=$qno+1; $qid=$eqid[$qno];
}
else
{
// else subtract one
$data['qno']=$qno-1;
$qid=$eqid[$qno-2];
}
}
else{
$data['qno']=$qno+1;
$qid=$eqid[$qno];
}
// getting earlier submitted answer if any
$data['result'] = $this->attempt_model->get_result($resultid);
// getting test data
$data['test'] = $this->test_model->get_test($tid,'0');
// getting question data
$data['question'] = $this->attempt_model->get_question($qid);
// load header page
$this->load->view('header_attemptTest.php',$data);
// load attempt test body page
$this->load->view('attemptTest',$data);
// load footer
$this->load->view('footer');
// update cookies with question number
$cookie = array('name'=>'qno','value'=>$data['qno'],'expire'=>'86500');
$this->input->set_cookie($cookie);
}
public function submit($msg='')
{
$this->load->helper('cookie');
$this->attempt_model->submit_test($_COOKIE['resultid'],$_COOKIE['tid']);
// page title meassage
$data['title']="Test Submitted";
$data['msg']=$msg;
$data['resultid']=$_COOKIE['resultid'];
$this->load->view('header.php',$data);
$this->load->view('submitTest',$data);
$this->load->view('footer');
// unset test cookies
$cookie = array('name'=>'resultid','value'=>'','expire'=>'1');
$this->input->set_cookie($cookie);
$cookie = array('name'=>'qids','value'=>'','expire'=>'1');
$this->input->set_cookie($cookie);
$cookie = array('name'=>'tid','value'=>'','expire'=>'1');
$this->input->set_cookie($cookie);
$cookie = array('name'=>'qno','value'=>'','expire'=>'1');
$this->input->set_cookie($cookie);
$cookie = array('name'=>'access_token','value'=>'','expire'=>'1');
$this->input->set_cookie($cookie);
}
}
?>
型号：
<?php
class attempt_model extends CI_Model {
public function __construct()
{
$this->load->database();
}
public function get_questions_id($test)
{
$noqs=explode(',',$test['random_question_no']);
$sids=explode(',',$test['subject_ids']);
foreach($noqs as $key => $noq){
$sid=$sids[$key];
if($key==0){
$sql="(select qid from questionBank where sid='$sid' order by rand() LIMIT $noq )";
}else{
$sql=$sql."UNION (select qid from questionBank where sid='$sid' order by rand() LIMIT $noq )";
}
}
$query = $this->db->query($sql);
$questions=$query->result_array();
return $questions;
}
// return single question
public function get_question($qid)
{
$sql="select * from questionBank where qid='$qid' ";
$query = $this->db->query($sql);
$questions=$query->row_array();
return $questions;
}
// return multiple questions
public function get_questions($qids)
{
$sql="select * from questionBank where qid in($qids) ORDER BY FIELD(qid, $qids) ";
$query = $this->db->query($sql);
$questions=$query->result_array();
return $questions;
}
public function get_result($resultid)
{
$sql="select * from result where result_id='$resultid' ";
$query = $this->db->query($sql);
$result=$query->row_array();
return $result;
}
public function submit_answer($resultid,$qno,$tid,$qid,$posted_answer,$time1)
{
$sql="select * from result where result_id='$resultid' ";
$query1 = $this->db->query($sql);
$result=$query1->row_array();
// getting correct answer from question
$sql="select answer from questionBank where qid='$qid' ";
$query = $this->db->query($sql);
$answer=$query->row_array();
//compare posted answer with correct answer
$correct_answer=explode(",",$result['correct_answer']);
$selected_answers=explode(",",$result['selected_answers']);
$time_taken=explode(",",$result['time_taken']);
$time2=(time()-$time1);
$time_taken[$qno-1]=($time_taken[$qno-1])+$time2;
if($posted_answer!='NULL'){
if($posted_answer==$answer['answer']){ $correct_answer[$qno-1]="1"; }else{ $correct_answer[$qno-1]="0"; }
$selected_answers[$qno-1]=$posted_answer;
}
$correct_answer=implode(",",$correct_answer);
$selected_answers=implode(",",$selected_answers);
$time_taken=implode(",",$time_taken);
// Update result row
$data = array('correct_answer' => $correct_answer,'selected_answers' => $selected_answers,'time_taken' => $time_taken);
$this->db->where('result_id', $resultid);
$this->db->update('result', $data);
}
public function submit_test($resultid,$tid)
{
// getting test data
$sql="select * from test where tid='$tid' ";
$query1 = $this->db->query($sql);
$test=$query1->row_array();
// getting result data
$sql="select * from result where result_id='$resultid' ";
$query2 = $this->db->query($sql);
$result=$query2->row_array();
// calculating result
$correct_answer=$result['correct_answer'];
$correct_answer=str_replace("2","0",$correct_answer);
$correct_answer=explode(",",$correct_answer);
$correctans=array_sum($correct_answer);
$wrong_answer=$result['correct_answer']; $wrong_answer=explode(",",$wrong_answer); $wrong_ans=count( array_keys( $wrong_answer, "0" ));
$total_marks=$correctans-$wrong_ans*$test['minus_mark'];
$percentage=($total_marks/$result['total_question'])*100;
if($percentage>=$test['reqpercentage'])
{
$status="1";
}
else
{
$status="0";
}
// update result row
$data = array('obtained_percentage' => $percentage,'status' => $status,'submitTime'=>time());
$this->db->where('result_id', $resultid);
$this->db->update('result', $data);
}
public function insert_result_row($test,$qids)
{
$totq=explode(",",$test['random_question_no']);
$totqs=array_sum($totq);
$temp_value=array();
for($i=0; $i < $totqs; $i++)
{
$temp_value[$i]='2';
}
$temp_value=implode(",",$temp_value);
$temp_time=array();
for($j=0; $j < $totqs; $j++)
{
$temp_time[$j]='0';
}
$temp_time=implode(",",$temp_time);
$uid=$this->session->userdata('uid');
// insert row
$data=array('uid'=>$uid,'tid'=>$test['tid'],'total_question'=>$totqs,'correct_answer' => $temp_value,'time_taken' => $temp_time, 'selected_answers' => $temp_value,'question_ids'=>$qids,'status'=>'2','iniTime'=>time());
$this->db->insert('result', $data);
return $this->db->insert_id();
}
}
?>
答案 0 :(得分：0)
我天赐不读你的代码，但我想你会想要这个;）
在这种情况下，我们假设此代码全部位于 index.php 文件中。
这是您链接到您的问题的方式（或者您可以以任何其他方式重定向）：
<?php
$id = -1;
if (isset($_GET["questionid"])) {
$id = $_GET["questionid"];
}
?>
<a href="index.php?questionid=1" <?php if($id == 1){echo " class='active'"} ?>>Question 1</a>
<a href="index.php?questionid=2" <?php if($id == 2){echo " class='active'"} ?>>Question 2</a>
<a href="index.php?questionid=3" <?php if($id == 3){echo " class='active'"} ?>>Question 3</a>
以下是如何使用id questionid 显示问题的代码。
<?php
if ($id > -1) {
showQuestion($id);
// = your code to show question with id questionid
}
else {
echo "No question selected";
}
?>