我正在编写一个 php 脚本并使用 mysql 数据库制作一个体育精选网站。用户将他们的选择提交到 mysql 数据库中，根据这些选择的正确与否，我想给他们一定的分数。
问题当然是用户会在每次体育赛事之前进行这些选择，因此我需要一种方法在每次赛事结束后更新页面，以便根据用户在表格中提供的信息(选择)对用户进行评分。我已经编写了所有内容，包括一个名为 fun(); 的函数，它会根据用户的选择对他们进行评分。我测试了脚本，在提交我的选择后，我尝试将 fun(); 添加到脚本并保存。分数表没有更新。
如何更新 PHP 脚本？我希望这一切都有意义。这是函数代码和我试图将函数添加到的脚本。
这是函数。它测试 pick1。
function fun()
{
//loop declare begin
$quer = "SELECT * FROM sffedorvsdan WHERE username = '$_SESSION[username]'";
if($quer_run = mysql_query($quer))
{
while($row = mysql_fetch_assoc($quer_run))
{
$pick1 = $row['pick1'];
$pick2 = $row['pick2'];
$pick3 = $row['pick3'];
$pick4 = $row['pick4'];
$pick5 = $row['pick5'];
$pick6 = $row['pick6'];
//loop end EXCEPT CLOSE
$user = $_SESSION['username'];
if($pick1 == '11')
{
$score = mysql_query("UPDATE stats SET score = (score + 10), mmascore = (mmascore + 10), wins = (wins + 1), games =(games + 1) WHERE username = '$user'");
return $score;
}
else if($pick1 == '21')
{
$score2 = mysql_query("UPDATE stats SET score = (score - 5), mmascore = (mmascore - 5), games = (games + 1) WHERE username = '$user'");
return $score2;
}
}
}else{
echo mysql_error();
}
}
?>
这是主要脚本，包括 html 和我想要 fun() 的地方；去。在//Pick Start 注释中只注意//Pick 1 Start 因为它是我要测试的唯一一个。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<?php
session_start();
if ($_SESSION['username'])
{
$connect2 = //WHERE I CONNECT TO DATABASE
$sql = "SELECT * FROM access WHERE username = '$_SESSION[username]'";
$query = mysql_query($sql,$connect2);
if ($query) {
while ($row = mysql_fetch_assoc($query))
{
$activated = $row['sf'];
if ($activated!='0')
{
die("You've already submitted your answers<br><a href='mmanav.php'>BACK</a>");
}
}
}
$user = "Welcome, ".$_SESSION['username']."!<br><a href='logout.php'>Logout</a>";
}
else
{
die("You must be logged in!");
}
//PICK VARIABLES
$dan_status = 'unchecked';
$fedor_status = 'unchecked';
$paul_status = 'unchecked';
$tyron_status = 'unchecked';
$tim_status = 'unchecked';
$robbie_status = 'unchecked';
$tarec_status = 'unchecked';
$scott_status = 'unchecked';
$marloes_status = 'unchecked';
$miesha_status = 'unchecked';
//function file
include('fun.php');
//function file end
if (isset($_POST['submit']))
{
$connect = //WERE I CONNECT TO DATABASE
//PICK 1 START
$selected_radio = $_POST['fighter'];
if ($selected_radio == 'dan')
{
$dan_status = 'checked';
mysql_query("INSERT INTO sffedorvsdan (id,username,pick1) VALUES ('','$_SESSION[username]','11')"); //insert table data picks
}
else if ($selected_radio == 'fedor')
{
$fedor_status = 'checked';
mysql_query("INSERT INTO sffedorvsdan (id,username,pick1) VALUES ('','$_SESSION[username]','21')"); //insert table data picks
}
//PICK 2 START
$selected2_radio = $_POST['fighter2'];
if ($selected2_radio == 'paul')
{
$paul_status = 'checked';
/*mysql_query("UPDATE stats SET score = (score + 10), mmascore = (mmascore + 10)
WHERE username = '$_SESSION[username]'");*/
}
else if ($selected2_radio == 'tyron')
{
$tyron_status = 'checked';
/*mysql_query("UPDATE stats SET score = (score - 5), mmascore = (mmascore - 5)
WHERE username = '$_SESSION[username]'");*/
}
//PICK 3 START
$selected3_radio = $_POST['fighter3'];
if ($selected3_radio == 'tim')
{
$tim_status = 'checked';
/*mysql_query("UPDATE stats SET score = (score + 10), mmascore = (mmascore + 10)
WHERE username = '$_SESSION[username]'");*/
}
else if ($selected3_radio == 'robbie')
{
$robbie_status = 'checked';
/*mysql_query("UPDATE stats SET score = (score - 5), mmascore = (mmascore - 5)
WHERE username = '$_SESSION[username]'");*/
}
//PICK 4 START
$selected4_radio = $_POST['fighter4'];
if ($selected4_radio == 'tarec')
{
$tarec_status = 'checked';
//mysql_query("UPDATE stats SET score = (score + 10), mmascore = (mmascore + 10)
//WHERE username = '$_SESSION[username]'");
}
else if ($selected4_radio == 'scott')
{
$scott_status = 'checked';
//mysql_query("UPDATE stats SET score = (score - 5), mmascore = (mmascore - 5)
//WHERE username = '$_SESSION[username]'");
}
//PICK 5 START
$selected5_radio = $_POST['fighter5'];
if ($selected5_radio == 'marloes')
{
$marloes_status = 'checked';
//mysql_query("UPDATE stats SET score = (score + 10), mmascore = (mmascore + 10)
//WHERE username = '$_SESSION[username]'");
}
else if ($selected5_radio == 'miesha')
{
$miesha_status = 'checked';
//mysql_query("UPDATE stats SET score = (score - 5), mmascore = (mmascore - 5)
//WHERE username = '$_SESSION[username]'");
}
mysql_query("UPDATE access SET sf ='1'
WHERE username = '$_SESSION[username]'");
fun(); //WHERE FUN WILL GO AFTER I RUN THE SCRIPT ONCE
die("Your picks have been submitted!<br><a href='gamenav.php'>Return</a>");
}
?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<link rel="stylesheet" type="text/css" href="home.css" />
</head>
<body>
<div class="container">
<div class="log">
<?php echo $user; ?>
</div>
<div class="logo">
<img src="IB SportsTV Logo.png" width="240px" height="180px"/>
</div>
<FORM name ="form" method ="POST" action ="picks.php">
<div class="mainform">
<Input type = 'Radio' Name ='fighter' value= 'dan'
<?PHP print $dan_status; ?>
>Dan Henderson<br>
<img src="Dan_Henderson.jpg" width="100" height="100"/><br>
<Input type = 'Radio' Name ='fighter' value= 'fedor'
<?PHP print $fedor_status; ?>
>Fedor Emelianenko<br>
<img src="Fedor_Emelianenko.png" width="100" height="100"/><br><br><br>
</div>
<div class="form2">
<Input type = 'Radio' Name ='fighter2' value= 'paul'
<?PHP print $paul_status; ?>
>Paul Daley<br>
<img src="Paul_Daley.png" width="100" height="100"/><br>
<Input type = 'Radio' Name ='fighter2' value= 'tyron'
<?PHP print $tyron_status; ?>
>Tyron Woodley<br>
<img src="Tyron_Woodley.jpg" width="100" height="100"/><br><br><br>
</div>
<div class="form3">
<Input type = 'Radio' Name ='fighter3' value= 'tim'
<?PHP print $tim_status; ?>
>Tim Kennedy<br>
<img src="Tim_Kennedy.png" width="100" height="100"/><br>
<Input type = 'Radio' Name ='fighter3' value= 'robbie'
<?PHP print $robbie_status; ?>
>Robbie Lawler<br>
<img src="Robbie_Lawler.png" width="100" height="100"/><br><br><br>
</div>
<div class="form4">
<Input type = 'Radio' Name ='fighter4' value= 'tarec'
<?PHP print $tarec_status; ?>
>Tarec Saffiedine<br>
<img src="Tarec_Saffiedine.png" width="100" height="100"/><br>
<Input type = 'Radio' Name ='fighter4' value= 'scott'
<?PHP print $scott_status; ?>
>Scott Smith<br>
<img src="Scott_Smith.png" width="100" height="100"/><br><br><br>
</div>
<div class="form5">
<Input type = 'Radio' Name ='fighter5' value= 'marloes'
<?PHP print $marloes_status; ?>
>Marloes Coenen<br>
<img src="Marloes_Coenen.jpg" width="100" height="100"/><br>
<Input type = 'Radio' Name ='fighter5' value= 'miesha'
<?PHP print $miesha_status; ?>
>Miesha Tate<br>
<img src="Miesha_Tate.png" width="100" height="100"/><br>
</div>
<div class="submitbutton">
<P>
<Input type = "Submit" Name = "submit" VALUE = "SUBMIT PICKS">
</FORM>
</div>
</div>
</body>
</html>
最佳答案
那里有很多事情要做，所以我想我只是留下一个大纲，说明我将如何为一个小网站处理这个问题(一个有大量流量的网站将包括缓存表、cron工作，以及各种乐趣):
- 用户登录并转到该页面。
- 将对过去事件的预测与获胜者进行比较。
- 计算分数。
- 展示它们。
我的选择语句可能是(如果表 EVENTS 用于事件，而 PREDICTIONS 用于预测)
SELECT SUM( WINS ) FROM (
SELECT
-- if they are correct, they will get 1, otherwise 0
IF( EVENTS.WINNER = PREDICTIONS.CHOICE, 1, 0 ) AS WINS
FROM
-- since you need information from two tables, you need to use JOIN.
EVENTS, PREDICTIONS
-- assuming that EVENTS.ID and PREDICTIONS.EVENT_ID are related through
-- something called a foreign key
ON ( EVENTS.ID = PREDICTIONS.EVENT_ID )
WHERE
-- an entry in EVENTS should only have a winner if the event has passed
-- so there is no need for a time calculation.
-- ... unless someone is taking a dive... ;-)
EVENTS.WINNER IS NOT NULL AND
PREDICTIONS.USER_ID = 'userID' )
该查询将意味着您始终可以获得当前总数，该总数直接将用户与其正确预测的数量相关联。他所做的只是更新预测。您只需更新 EVENTS.WINNER。
实际上，我会明确避免在不跟踪此数据的情况下存储分数——如果您有原始的、未计算的数据，您始终可以基于它填充某些内容(例如我的示例)。
关于执行 PHP 脚本后更新 mysql 数据库，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/6701825/