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最初に：これはthis questionの繰り返しではありません。同じスクリプトですが、別の質問です。PHPスクリプトで変数がインクリメントされない
私は以前、私の以前の質問のエラーがこのエラーを解決したと思っていましたが、それはしませんでした。
私は簡単な3つの質問クイズをPHPで作成しています。クイズは構文エラーなしで実行されますが、問題は私の変数$ correctがクイズ全体で増加していないようです（正解が与えられている）。私はそれが変更されても何も印刷されないかどうかを確認するためにprintステートメントを置きます。どういうわけか、変数の値を正しくインクリメントしていません。代わりに、出力の
：
You got 2 out of 3 correct. //where 2 is the value of $correct
それは出力：私は間違って何をやっている
You got correct out of correct. //where the value $correct seems to have no value
？
<?php
ini_set('session.gc_maxlifetime',900);
//echo ini_get("session.gc_maxlifetime");
session_start();
if($_SESSION['loggedin'] !== 1) {
header('Location: login.php');
exit;
}
if(isset($_SESSION["blah"]))
{
$_SESSION["number"] = 0;
$_SESSION["correct"] = 0;
}
$total_number = 3;
print <<<TOP
<html>
<head>
<title> History Quiz </title>
</head>
<body>
<h3> History Quiz </h3>
TOP;
$number = $_SESSION["number"];
$correct = $_SESSION["correct"];
if ($number == 0){
print <<<FIRST
<p> You will be given $total_number questions in this quiz. <br /><br/>
You will have 15 minutes to complete it. <br /><br/>
You cannot go back to change previous answers.<br /><br/>
Here is your first question: <br /><br />
</p>
<p>1. Abe Lincoln was born in Illinois.</p>
<p>
<label><input type="radio" name="question1" value="true" /> True </label>
<label><input type="radio" name="question1" value="false" /> False </label>
</p>
FIRST;
if (isset($_POST['submit'])) {
$selected_radio = $_POST['question1'];
if ($selected_radio == 'false') {
$correct++;
print $correct;
$_SESSION["correct"] = $correct;
}
}
}
if ($number == 1){
print <<<SECOND
<p>2. In what state was the battle of Gettysburg fought?</p>
<p>
<label><input type="checkbox" name="question2" value="Texas" /> a) Texas
</label><br/>
<label><input type="checkbox" name="question2" value="Pennsylvania" /> b)
Pennsylvania </label><br/>
<label><input type="checkbox" name="question2" value="Virginia" /> c) Virginia
</label><br/>
<label><input type="checkbox" name="question2" value="West Virginia" /> d) West
Virginia </label>
</p>
SECOND;
if (isset($_POST['submit'])) {
if(isset($_POST['question2']) &&
$_POST['question'] == 'Pennsylvania')
{
$correct++;
$_SESSION["correct"] = $correct;
}
}
}
if ($number == 2){
print <<<THIRD
<p>3. The last name of the commander of the Army of North Virginia was __________.</p>
<p>
<input type='text' id='question3' />
THIRD;
if (isset($_POST['submit'])) {
$selected_answer = $_POST['question3'];
if ($selected_answer == "lee") {
$correct++;
$_SESSION["correct"] = $correct;
}
}
}
if ($number >= $total_number)
{
print <<<FINAL_SCORE
Your final score is $correct correct out of $total_number. <br /><br />
Thank you for playing. <br /><br />
FINAL_SCORE;
session_destroy();
}
else
{
$number++;
$_SESSION["number"] = $number;
$script = $_SERVER['PHP_SELF'];
print <<<FORM
<form method = "post" action = $script>
<input type = "submit" value = "Check Answer" />
</form>
FORM;
}
?>
フリオ、私の現在のコード（第二更新）：
<?php
ini_set('session.gc_maxlifetime',900);
session_start();
if($_SESSION['loggedin'] !== 1) {
header('Location: login.php');
exit;
}
if(isset($_SESSION["correct"])){
$correct = $_SESSION["correct"];
} else {
$number = 0;
$correct = 0;
}
// check if which question was submitted
if (isset($_POST['submit'])) {
// set $number = the question that was submitted
$number = $_POST['question'];
switch ($_POST['question']){
case 1:
if ($_POST['answer']) $correct++; // this answer should be 'true'
break;
case 2:
if ($_POST['answer'] == 2) $correct++; // this answer should be 'PA'
break;
case 3:
if ($_POST['answer'] == "lee") $correct++; //this answer should be 'lee'
}
}
// set the session correct var to our current tally
$_SESSION['correct'] = $correct;
$total_number = 3;
print <<<TOP
<html>
<head>
<title> History Quiz </title>
</head>
<body>
<h3> History Quiz </h3>
TOP;
if ($number == 0){
print <<<FIRST
<p> You will be given $total_number questions in this quiz. <br /><br/>
You will have 15 minutes to complete it. <br /><br/>
You cannot go back to change previous answers.<br /><br/>
Here is your first question: <br /><br />
</p>
<p>1. Abe Lincoln was born in Illinois.</p>
<p>
<label><input type="radio" name="answer" value="true" /> True </label>
<label><input type="radio" name="answer" value="false" /> False </label>
<input type="hidden" name="question" value="1" />
</p>
FIRST;
}
if ($number == 1){
print <<<SECOND
<p>2. In what state was the battle of Gettysburg fought?</p>
<p>
<label><input type="checkbox" name="answer" value="1" /> a) Texas
</label><br/>
<label><input type="checkbox" name="answer" value="2" /> b)
Pennsylvania </label><br/>
<label><input type="checkbox" name="answer" value="3" /> c) Virginia
</label><br/>
<label><input type="checkbox" name="answer" value="4" /> d) West
Virginia </label>
<input type="hidden" name="question" value="2" />
</p>
SECOND;
}
if ($number == 2){
print <<<THIRD
<p>3. The last name of the commander of the Army of North Virginia was __________.</p>
<p>
<input type='text' id='answer' />
<input type="hidden" name="question" value="3" />
</p>
THIRD;
}
if ($number >= $total_number)
{
print <<<FINAL_SCORE
Your final score is $correct correct out of $total_number. <br /><br />
Thank you for playing. <br /><br />
FINAL_SCORE;
session_destroy();
}
else {
$number++;
$_SESSION['number'] = $number;
$script = $_SERVER['PHP_SELF'];
print <<<FORM
<form method = "post" action = $script>
<input type = "submit" value = "Check Answer" />
</form>
FORM;
}
?>
最終スコアを印刷するときに '$ _SESSION [" correct "]'を使用するとどうなりますか？ –
私はPHPに慣れていますので、私を許しても、私のラインはこのように見えますか？あなたの最終得点は$ total_numberの$ _SESSION ["correct"]です。 <もしそうなら、構文エラーが出ます。 – kmimage