我想写一个简单的PHP脚本，就像一组闪存卡。我想让脚本提示我(通过命令提示符)有一个问题，然后一旦我准备好了，然后我按回车，它显示了我的答案。然后我按回车键，它就会显示下一个问题，等等。
我已经编写了下面的脚本，但是当我第一次按Enter时，它会一直通过数组，然后一次完成。我想让它在每个问题和答案之间暂停输入。
$questionsandanswers = array(
"What is 1 plus 1?",
"2",
"What is 2 plus 2?",
"4",
);
foreach ($questionsandanswers as $qa) {
echo $qa . "'n";
$handle = fopen ("php://stdin","r");
$line = fgets($handle);
if ($line) {
echo $qa . "'n";
fclose($handle);
}
}
您可以使用-a选项启动PHP，以便将其置于交互式shell中。然后，在数组中格式化您的问题/答案，如key => value，以便能够检查输入的答案是否正确。最后打开循环外的php://stdin。
。:
user$ php -a
Interactive mode enabled
php > $handle = fopen("php://stdin", 'r');
php > $questionsandanswers = array(
php ( "What is 1 plus 1?" => 2,
php ( "What is 2 plus 2?" => 4,
php ( "What is... your favorite color?" => "Blue. Oh no... Red !"
php ( );
php > foreach ($questionsandanswers as $key => $value) {
php { echo $key . "'n";
php { $answer = fgets($handle);
php { if ($answer == $value) {
php { echo "Correct !'n";
php { } else {
php { echo "Wrong...'n";
php { }
php { }
What is 1 plus 1?
2
Correct !
What is 2 plus 2?
4
Correct !
What is... your favorite color?
Green
Wrong...
玩得开心!=)
编辑
您也可以在文件(Q_A_script.php)中编写脚本:
<?php
$handle = fopen("php://stdin", 'r');
$questionsandanswers = array(
"What is 1 plus 1?" => 2,
"What is 2 plus 2?" => 4,
"What is... your favorite color?" => "Blue. Oh no... Red !"
);
foreach ($questionsandanswers as $key => $value) {
echo $key . "'n";
$answer = fgets($handle);
if ($answer == $value) {
echo "Correct !'n";
} else {
echo "Wrong...'n";
}
}
fclose($handle);
?>
并像从命令行启动其他PHP脚本一样启动它:
php ./Q_A_script.php