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私は複数の選択肢を作りたいと思っており、質問はデータベースから来ています。私は自分のデータベース名が正しいと確信していますが、次のをクリックすると、質問は変更されず、そのまま終了/質問の結果になり、質問もランダムではありません。私がデータベースに挿入した最後の質問がWebページに表示されます。データベースからのデータを複数選択する
<?php
require_once('includes/db_conn.php');
$query = "select * from question";
$query_result = $dbc->query($query);
$num_questions_returned = $query_result->num_rows;
if ($num_questions_returned < 1){
echo "There is no question in the database";
exit();}
$questionsArray = array();
while ($row = $query_result->fetch_assoc()){
$questionsArray[] = $row;
}
$correctAnswerArray = array();
foreach($questionsArray as $question){
$correctAnswerArray[$question['question']] = $question['correct_answer'];
}
$questions = array();
foreach($questionsArray as $question) {
$questions[$question['question']] = $question['question'];
}
$choices = array();
foreach ($questionsArray as $row) {
$choices[$row['question']] = array($row['wrong_answer1'], $row['wrong_answer2'], $row['wrong_answer3'], $row['correct_answer']);
}
error_reporting(0);
$address = "";
$randomizequestions ="yes";
$a = array(
1 => array(
0 => $question['question'],
1 => $row['wrong_answer1'],
2 => $row['wrong_answer2'],
3 => $row['wrong_answer3'],
4 => $row['correct_answer'],
6 => 4
),
);
$max=1;
$question=$_POST["question"] ;
if ($_POST["Randon"]==0){
if($randomizequestions =="yes"){$randval = mt_rand(1,$max);}else{$randval=1;}
$randval2 = $randval;
}else{
$randval=$_POST["Randon"];
$randval2=$_POST["Randon"] + $question;
if ($randval2>$max){
$randval2=$randval2-$max;
}
}
$ok=$_POST["ok"] ;
if ($question==0){
$question=0;
$ok=0;
$percentage=0;
}else{
$percentage= Round(100*$ok/$question);
}
?>
<HTML><HEAD>
<SCRIPT LANGUAGE='JavaScript'>
<!--
function Goahead (number){
if (document.percentaje.response.value==0){
if (number==<?php print $a[$randval2][6] ; ?>){
document.percentaje.response.value=1
document.percentaje.question.value++
document.percentaje.ok.value++
}else{
document.percentaje.response.value=1
document.percentaje.question.value++
}
}
if (number==<?php print $a[$randval2][6] ; ?>){
document.question.response.value="Correct"
}else{
document.question.response.value="Incorrect"
}
}
// -->
</SCRIPT>
</HEAD>
<BODY BGCOLOR=FFFFFF>
<CENTER>
<H1><?php print "$title"; ?></H1>
<TABLE BORDER=0 CELLSPACING=5 WIDTH=500>
<?php if ($question<$max){ ?>
<TR><TD ALIGN=RIGHT>
<FORM METHOD=POST NAME="percentaje" ACTION="<?php print $URL; ?>">
<BR>Percentaje of correct responses: <?php print $percentage; ?> %
<BR><input type=submit value="Next >>">
<input type=hidden name=response value=0>
<input type=hidden name=question value=<?php print $question; ?>>
<input type=hidden name=ok value=<?php print $ok; ?>>
<input type=hidden name=Randon value=<?php print $randval; ?>>
<br><?php print $question+1; ?>/<?php print $max; ?>
</FORM>
<HR>
</TD></TR>
<TR><TD>
<FORM METHOD=POST NAME="question" ACTION="">
<?php print "<b>".$a[$randval2][0]."</b>"; ?>
<BR> <INPUT TYPE=radio NAME="option" VALUE="1" onClick=" Goahead (1);"><?php print $a[$randval2][1] ; ?>
<BR> <INPUT TYPE=radio NAME="option" VALUE="2" onClick=" Goahead (2);"><?php print $a[$randval2][2] ; ?>
<?php if ($a[$randval2][3]!=""){ ?>
<BR> <INPUT TYPE=radio NAME="option" VALUE="3" onClick=" Goahead (3);"><?php print $a[$randval2][3] ; } ?>
<?php if ($a[$randval2][4]!=""){ ?>
<BR> <INPUT TYPE=radio NAME="option" VALUE="4" onClick=" Goahead (4);"><?php print $a[$randval2][4] ; } ?>
<BR> <input type=text name=response size=8>
</FORM>
<?php
}else{
?>
<TR><TD ALIGN=Center>
The Quiz has finished
<BR>Percentage of correct responses: <?php print $percentage ; ?> %
<p><A HREF="<?php print $address; ?>">Home Page</a>
<?php } ?>
</TD></TR>
</TABLE>
</CENTER>
</BODY>
</HTML>
これが私のプロセスでは、データベースにデータを追加します：あなたは$の選択肢を使用していない理由を
<?php
include('includes/header.html');
error_reporting(-1);
ini_set('display_errors', 'On');
//Check for empty fields
if(empty($_POST['question'])||
empty($_POST['correct_answer']) ||
empty($_POST['wrong_answer1']) ||
empty($_POST['wrong_answer2']) ||
empty($_POST['wrong_answer3']))
{
echo "Please complete all fields";
exit();
}
//Create short variables
$question = $_POST['question'];
$correct_answer = ($_POST['correct_answer']);
$wrong_answer1 = ($_POST['wrong_answer1']);
$wrong_answer2 = ($_POST['wrong_answer2']);
$wrong_answer3 = ($_POST['wrong_answer3']);
//connect to the database
require_once('includes/db_conn.php');
//Create the insert query
$query = "INSERT INTO question VALUES ('$question', '$correct_answer', '$wrong_answer1','$wrong_answer2','$wrong_answer3')";
$result = $dbc->query($query);
if($result){
echo "Your quiz has been saved";
} else {
echo '<h1>System Error</h1>';
}
$dbc->close();
?>