How to get the exact value from function shuffle in codeigniter? - php

Question

Hello im just a newbie in codeigniter and i just want to ask on how to fix this problem...
i just want to make a simple quiz system and i want to shuffle all the questions from my database and display it.. the problem is when i compare the questions choices it gives me a value of unshuffle how can i solve this?
this is my controller to display my questions
public function quiz()
{
if(isset($_SESSION['username'])) {
$this->load->model('quizmodel');
$this->data['questions'] = $this->quizmodel->getQuestions();
$this->load->view('client/quiz', $this->data);
}else{
$this->load->view('home');
}
}
this is the getQuestions function from my quizmodel
public function getQuestions()
{
$this->db->select("cropscience_id, question, choice1, choice2, choice3, answer");
$this->db->from("cropscience");
$query = $this->db->get();
return $query->result();
$num_data_returned = $query->num_rows;
if ($num_data_returned < 1) {
echo "There is no data in the database";
exit();
}
}
this is my quiz view
<div class="panel-body">
<form method="post" action="<?php echo base_url();?>index.php/client_controller/resultdisplay">
<?php shuffle($questions); ?>
<?php foreach($questions as $row) { ?>
<?php $ans_array = array($row->choice1, $row->choice2, $row->choice3, $row->answer);
shuffle($ans_array); ?>
<div class="alert alert-success">
<p><?=$row->question?></p>
<br>
<div class="radio radio-success radio-inline">
<input type="radio" name="<?php echo $row->cropscience_id ?>" value="<?=$ans_array[0]?>" required>
<label for="inlineRadio1"> <?=$ans_array[0]?> </label>
</div>
<div class="radio radio-success radio-inline">
<input type="radio" name="<?php echo $row->cropscience_id ?>" value="<?=$ans_array[1]?>">
<label for="inlineRadio1"> <?=$ans_array[1]?> </label>
</div>
<div class="radio radio-success radio-inline">
<input type="radio" name="<?php echo $row->cropscience_id ?>" value="<?=$ans_array[2]?>">
<label for="inlineRadio1"> <?=$ans_array[2]?> </label>
</div>
<div class="radio radio-success radio-inline">
<input type="radio" name="<?php echo $row->cropscience_id ?>" value="<?=$ans_array[3]?>">
<label for="inlineRadio1"> <?=$ans_array[3]?> </label>
</div>
</div>
<?php } ?>
<div align="center" >
<div class="btn btn-primary btn-rounded">
<i class="fa fa-check"></i><input class="btn btn-primary btn-rounded" type="submit" value="Submit!">
</div>
</div>
</form>
</div>
this is my resultdisplay function from my controller
public function resultdisplay()
{
if(isset($_SESSION['username'])) {
$this->load->model('quizmodel');
$qID = $this->quizmodel->getQuizID();
$this->data['checks'] = $this->input->post($qID);
$this->load->model('quizmodel');
$this->data['results'] = $this->quizmodel->resultsScore();
$this->load->view('client/result_display', $this->data);
}else{
$this->load->view('home');
}
}
this is my result_display view
div class="wrapper wrapper-content">
<div class="container">
<div class="row">
<div class="col-md-12">
<div class="panel panel-primary">
<div class="panel-heading">
<h1 style="color: white;">Results</h1>
</div>
<div class="panel-body">
<?php $score = 0; ?>
<?php $array1= array(); ?>
<?php $array2= array(); ?>
<?php $array3= array(); ?>
<?php $array4= array(); ?>
<?php $array5= array(); ?>
<?php $array6= array(); ?>
<?php $array7= array(); ?>
<?php $array8= array(); ?>
<?php $count = 0; ?>
<?php foreach($checks as $checkans) { ?>
<?php echo $checkans; ?>
<?php $array1[$count] = $checkans;
$count++; ?>
<?php }?>
<br><br>
<?php foreach($results as $res) { ?>
<?php $array2[] = $res->answer;
$array3[] = $res->cropscience_id;
$array4[] = $res->question;
$array5[] = $res->choice1;
$array6[] = $res->choice2;
$array7[] = $res->choice3; ?>
<?php } ?>
<?php for ($x=0; $x <= $array3[$x]; $x++) { ?>
<?php echo $array4[$x]; ?>
<?php if ($array2[$x] != $array1[$x]) { ?>
<div class="alert alert-danger">
<p><i class="fa fa-times"></i></p>
<p><span style="background-color: #FF9C9E"><?=$array1[$x]?></span></p>
<p><span style="background-color: #ADFFB4"><?=$array2[$x]?></span></p>
</div>
<?php } else { ?>
<div class="alert alert-success">
<p><i class="fa fa-check"></i></p>
<p><span style="background-color: #ADFFB4"><?=$array1[$x]?></span></p>
</div>
<?php $score = $score + 1 ?>
<?php } ?>
<?php } ?>
<div align="center">
<input type="hidden" name="score" value="<?=$score?>">
<input type="button" class="btn btn-primary" data-toggle="modal" data-target="#scoremodal" value="View Your Score">
<!-- Score Modal Body -->
<div class="modal inmodal fade" id="scoremodal" tabindex="-1" role="dialog" aria-hidden="true">
<div class="modal-dialog modal-sm">
<div class="modal-content">
<div class="modal-body" align="center">
<h2>Your Score is: </h2>
<h1><?=$score?>/100</h1>
</div>
<div class="modal-footer">
<?php echo form_open('client_controller/save_score'); ?>
<form method="get">
<div align="center">
<input type="hidden" name="score" value="<?=$score?>">
<input type="submit" class="btn btn-primary" value="Ok">
</div>
</form>
<?php echo form_close(); ?>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
this is my getQuizID() function model
public function getQuizID()
{
$this->db->select("cropscience_id");
$this->db->from("cropscience");
$query = $this->db->get();
}
this is my resultsScore() function model
public function resultsScore()
{
$this->db->select("cropscience_id, question, choice1, choice2, choice3, answer");
$this->db->from("cropscience");
$query = $this->db->get();
return $query->result();
$num_data_returned = $query->num_rows;
}
please help thank you

Answer 1

make a query like this:
$this->db->order_by('id', 'RANDOM');
or
$this->db->order_by('rand()');
$query = $this->db->get('cropscience');
return $query->result_array();