我正在编写一个PHP脚本，它询问4个是/否问题，并根据答案，最后显示您正在考虑的动物，但尚未完成。我已经完成了前 3 组问题，共 4 个，但我不知道如何在不做大约 6 或 7 个 switch/if 语句的情况下显示最后一组问题，然后显示答案，有没有比这更好的方法，也许使用某种循环？下面是我到目前为止编写的代码，您可以在 http://s504518.brunelweb.net/Creatures.php 查看测验，尽管它尚未完成。任何帮助将不胜感激。
<?php
session_set_cookie_params(2592000); //Sets cookie to last for 30 days
session_start();
?>
<html>
<head>
<title>Creature Guessing Game</title>
</head>
<body>
<h1>Creature Guessing Game</h1>
<p> Welcome to the creature guessing game! </p>
<p>Click the button below to start or restart the game </p>
<form method="post" action="Creatures.php">
<input type="submit" name="start" value="Start Game" />
</form>
<?php
$firstquestion = "Does the creature live on the land?"; //Question 1
$questions = array( //Question 2 //Question 3
array('Does it have wings?', 'Is it amphibious?'), //First answer is for yes, second for no
//Question 4 //Question 5 //Question 6 //Question 7
array('Can it fly?', 'Is it an insect?', 'Is it white?', 'Does it have tentacles?'), //First 2 are yes/no for Q2 and second 2 are yes/no for Q3
//Question 8 //Question 9 //Question 10 //Question 11
array('Is it brown?','Does it live in Australia?','Is it green?','Does it have 2 arms?'), //First 2 are yes/no for Q4, second 2 are yes/no for Q5
//Question 12 //Question 13 //Question 14 //Question 15
array('Does it live in the Artic?','Do they eat their legs in France?','Has is got eight of them?','Can you keep them as pets?')
//First 2 are yes/no for Q6 and second 2 are yes/no for Q7
);
$answers1 = array('Eagle','Parrot','Ostrich','Turkey','Grasshopper','Ant','Gorilla','Tiger'); //Answers is Q1 is yes
$answer2 = array('Penguin','Goose','Frog','Salamander','Octopus','Jellyfish','Goldfish','Eel'); //Answers is Q1 is no
$number;
function showquestion($number) {
echo "<form method ='post' action='Creatures.php'>
<input type='submit' name='answer$number' value='Yes' />
<input type='submit' name='answer$number' value='No' />
</form>";
}
//If form not submitted, display form.
if (!isset($_POST['start'])){
?>
<?php
} //If form is submitted, process input
else{
echo $firstquestion;
echo "<form method ='post' action='Creatures.php'>
<input type='submit' name='yes1' value='Yes' />
<input type='submit' name='no1' value='No' />
</form>";
}
if ($_POST['yes1']) //If answer to Q1 is yes then display this
{
echo $questions[0][0];
showquestion(1);
}
if ($_POST['no1'])
{
echo $questions[0][1]; //If answer to Q1 is no then display this
showquestion(2);
}
switch($_POST['answer1']) //Q2 - Show the next question depending on the button pressed
{
case 'Yes': echo $questions[1][0]; showquestion(3);
break;
case 'No': echo $questions[1][1]; showquestion(4);
}
switch($_POST['answer2']) //Q3 - Show the next question depending on the button pressed
{
case 'Yes': echo $questions[1][2]; showquestion(5);
break;
case 'No': echo $questions[1][3]; showquestion(6);
}
?>
</body>
</html>
我建议不要使用数组，而是创建下表
问题表
QId,Question
奎西顿选项表
Qid, AID, Answer Description
问题流表
QId, AID, QID
回答特定问题时，您可以根据问题 ID 和答案 ID 回答下一个问题。添加新问题/更改问题流程也很简单。例如，根据您的图表，QuesitonsFlow表将是这样的
QID | AnsID | NextQID
1 | 1 | 2
1 | 2 | 3
这样，您可以扩展表。