Question

所以我决定尝试拿起PHP，在完成一些在线课程后，我有一定程度的基础知识。

我一直试图通过制作简单的游戏来测试自己。

在游戏中你会下注一定数量的积分和一个介于1和100之间的随机数，如果数字高于60，你得到的回报是你的两倍，如果低于60你就会失去你下注的金额。

我坚持创造一个跑步总数，并非常感谢任何建议。

下面的代码（对于编写错误的代码道歉：P）

   <?php
$rand = rand(1,100);
$usrBet = $_POST['usrBet'];
$usrCredit = 1000;

if ($rand > 60) {
$usrCredit = ($usrCredit - $usrBet) + ($usrBet * 2);
echo "Your Bet : " ,$usrBet;
echo "<br>";
echo "The Banker Rolled : " ,$rand;
echo "<br>";
echo "You Win";
echo "<br>";
echo "Current Credits : " ,$usrCredit;
} else {
$usrCredit = $usrCredit - $usrBet;
echo "Your Bet : " ,$usrBet;
echo "<br>";
echo "Aww Snap! you loose!";
echo "<br>";
echo "The Banker Rolled : " ,$rand;
echo "<br>";
echo "Current Credits : " ,$usrCredit;
}

?>

    <form action="dicegame.php" method="post">
    <INPUT TYPE = "Text" VALUE ="Please Enter Your Bet" NAME = "usrBet" placeholder="Please Enter Your Bet">
    <p><input type="submit" /></p>
    </form>

Answer 1

您必须使用会话来存储数据，以便分数不会重置

对于使用会话，您必须像这样开始会话

session_start();

之后你必须检查是否在会话中分配了值，如果没有意味着用户第一次尝试，那么我们将在会话开始时将这一点归功于此

if(!isset($_SESSION['userCredits'])){
  $_SESSION['userCredits'] = 1000;
}

当更新用户信用时，我们必须在会话中更新它，以便像这样

$_SESSION['userCredits'] = $usrCredit;

如果用户首先出现在页面上我们不想先给出结果，那么请检查表单是否在这样的条件开始时发布。

if(isset($_POST['usrBet'])){
 // PHP CODE
}

在所有这些之后，最终的代码将如下所示

<?php
session_start();

if(!isset($_SESSION['userCredits'])){
      $_SESSION['userCredits'] = 1000;
}


if(isset($_POST['usrBet'])){

    $rand = rand(1,100);
    $usrBet = $_POST['usrBet'];
    $usrCredit = $_SESSION['userCredits'];

    if ($rand > 60) {
        $usrCredit = ($usrCredit - $usrBet) + ($usrBet * 2);
        echo "Your Bet : " ,$usrBet;
        echo "<br>";
        echo "The Banker Rolled : " ,$rand;
        echo "<br>";
        echo "You Win";
        echo "<br>";
        echo "Current Credits : " ,$usrCredit;
    } else {
        $usrCredit = $usrCredit - $usrBet;
        echo "Your Bet : " ,$usrBet;
        echo "<br>";
        echo "Aww Snap! you loose!";
        echo "<br>";
        echo "The Banker Rolled : " ,$rand;
        echo "<br>";
       echo "Current Credits : " ,$usrCredit;
    }

    $_SESSION['userCredits'] = $usrCredit;

}

?>

<form action="dicegame.php" method="post">
    <INPUT TYPE = "Text"  NAME = "usrBet" placeholder="Please Enter Your Bet">
    <p><input type="submit" /></p>
</form>

您可以为其添加更多条件。希望这会有所帮助

Answer 2

我尝试添加一些功能，以便您可以通过这种方式进行搜索。如上所述$ _SESSION将解决pbm。

<?php
session_start();
?>
<!DOCTYPE html>
<html>
<head>
<script>
    <!-- Some few lines of JS - to disable characters input -->
    function isNumberKey(evt)
    {
        var charCode = (evt.which) ? evt.which : event.keyCode
        if (charCode > 31 && (charCode < 48 || charCode > 57))
            return false;
        return true;
    }    
</script>
   </head>
    <body>

   <!-- U'll to re-edit the target of the form + changed type to number for input -->
    <form action="7.php" method="post">
        <input type="number" name="usrBet"  value="Plz Enter Your Bet"
               placeholder="Plz Enter Your Bet" onkeypress="return isNumberKey(event)">
        <br>
        <input type="submit" value="Submit">
    </form>
</body>
</html>
<?php

// Check if user entered a value
if (isset($_POST['usrBet']))
{
    if($_POST['usrBet'] == '')
    $usrBet = 0;
else
    $usrBet = $_POST['usrBet'];

$rand = rand(1,100);

if(!isset($_SESSION['usrCredit']))
        $_SESSION['usrCredit'] = 1000;
if($rand > 60)
{
    $_SESSION['usrCredit'] = ($_SESSION['usrCredit'] - $usrBet) + ($usrBet * 2);
    echo "Your Bet : " . $usrBet;
    echo "<br>";
    echo "The Banker Rolled : " . $rand;
    echo "<br>";
    echo "You Won";
    echo "<br>";
    echo "Current Credits : "  . $_SESSION['usrCredit'];
} 

else
{
    $_SESSION['usrCredit'] = $_SESSION['usrCredit'] - $usrBet;

    echo "Your Bet : " . $usrBet;
    echo "<br>";
    echo "Aww Snap! you lost!";
    echo "<br>";
    echo "The Banker Rolled : " . $rand;
    echo "<br>";
    echo "Current Credits : " . $_SESSION['usrCredit'];
}
}
?>

PHP初学者 - 一个运行总计

2 个答案: