2

我对 PHP 相当陌生，但我正在尝试做一个猜谜游戏。这个想法是你猜测 1-100 之间的数字，并且代码意味着有一个随机分配的代码来猜测直到被猜到，目前只是在分配数字。所以每次我尝试猜测时它都不会随机化。

<?php
session_start();
$_SESSION[var_answer] = rand (1, 100);
$var_number = $_REQUEST['number'];
if($var_number == $_SESSION[var_answer]){
    echo " That is correct ;)";
}
else if($var_number <0 || $var_number>100){
    echo " Sorry your guess has to be between 0 and 100";
}else if($var_number==" "||$var_number==""){
    echo " Please take a guess first!";
}else if($var_number < $_SESSION[var_answer]){
    echo " Smaller than mine";
}else if($var_number > $_SESSION[var_answer]){
    echo " Larger than mine";
}
echo '<br/><a href="RNGG.php"> return</a>';
?>

到目前为止，这个数字是随机的，但正如我所说，不是每次会话都保存。

4

2 回答 2

1

Look at this code:

$_SESSION[var_answer] = rand (1, 100);
$var_number = $_REQUEST['number'];
if($var_number == $_SESSION[var_answer]){
    echo " That is correct ;)";
}

You are overwriting the session variable every time the page is reloaded. As far as I understand, you want to store the number in session, until the person guesses it. Try this:

//put a random number into session, if the variable is not defined
if(!isset($_SESSION['var_answer']))
{
    $_SESSION['var_answer'] = rand (1, 100);
}

$var_number = $_REQUEST['number'];
if($var_number == $_SESSION['var_answer']){
    echo " That is correct ;)";
    //undefine the variable if it's guessed
    unset($_SESSION['var_answer']);
}
于 2013-08-17T06:45:09.747 回答
0

$_SESSION[var_answer]必须更改为$_SESSION['var_answer']到处，它将解决您的问题。所以你的代码必须是

<?php
session_start();
$_SESSION['var_answer'] = rand (1, 100);
$var_number = $_REQUEST['number'];
if($var_number == $_SESSION['var_answer']){
    echo " That is correct ;)";
}
else if($var_number <0 || $var_number>100){
    echo " Sorry your guess has to be between 0 and 100";
}else if($var_number==" "||$var_number==""){
    echo " Please take a guess first!";
}else if($var_number < $_SESSION['var_answer']){
    echo " Smaller than mine";
}else if($var_number > $_SESSION['var_answer']){
    echo " Larger than mine";
}
echo '<br/><a href="RNGG.php"> return</a>';
?>
于 2013-08-17T06:36:20.920 回答