这是我的代码：
<html>
<title>Game Process</title>
</head>
<body>
<?php
$userguess= $_POST["number"];
$gennumber = rand(0,20);
if ($gennumber > $userguess) {
$result="lost";
echo "You have lost your guess was too low! The number was:".$gennumber;
} elseif ($gennumber == $userguess){
echo "Wow you are extreamly lucky to get ".$gennumber; $result="won";
} else {
echo "You have lost your guess was too high! The number was: ".$gennumber;
$result="lost";
}
?>
这就是我试图观察$count是否等于零以及是否将其设置为1的问题。我对isset和empty做了一些研究，但我不知道如何使用它们，正如我所说，我是编程新手！
<?php
$_SESSION['count']=$count;
if (!$count){
} else {
$count = 1;
}
if ($result == "lost"){
echo '<a href="Game.php"><input type="button" value="Have another guess!"/></a>';
$count +1;
echo "<br>your number of guess are: ".$count;
} else {
echo "well done!<br>";
echo "your number of guess are: ".$count;
}
?>
</body>
</html>
您有以下代码：
$_SESSION['count']=$count;
if (!$count){
} else {
$count = 1;
}
您正在将$count分配给$_SESSION数组中的一个值。您不会在那里更改$count的值。如果你想检查$count是否等于0，为什么不能使用：
if($count == 0)
{
$count = 1;
}
最后，$count + 1应该是++ $count。
if (isset($_SESSION['count']) && !empty($_SESSION['count']) && is_numeric($_SESSION['count'])) {
$count = (int)$_SESSION['count'];
} else {
$count = 0;
$_SESSION['count'] = (int)$count;
}
if ($result == "lost"){
echo '<a href="Game.php"><input type="button" value="Have another guess!"/></a>';
$count++; //increase $count var
$_SESSION['count'] = (int)$count;
echo "<br>your number of guess are: ".$count;
} else {
echo "well done!<br>";
echo "your number of guess are: ".$count;
}
检查这是否为您处理：(我正在检查会话中接收的值是否已设置，而不是空的，以及它是否为数字。如果是这样，我将把它保存到变量$count中，并将其强制转换为整数(只是为了确定(。
否则，将其设为0。