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我有一個積分系統是有一個測驗。當他們點擊提交測驗時，我想讓他們在mysql中獲得+1分。我有一個名爲登錄和表用戶的數據庫，並且在用戶希望點數在參加測驗時更新爲1+。 爲quiz_form代碼我使用：Mysql更新與PHP
:<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Registration Form</title>
</head>
<body>
<table width="328" border="0" align="center">
<form id="form1" name="form1" method="post" action="script.php">
<tr>
<td colspan="2"><h2 style="color:#FF0000">Quiz1</h2></td>
</tr>
<tr>
<td>UserName:</td>
<td>
<input name="txtusername" type="text" id="txtusername" value="<?php
session_start();
if ($_SESSION['username'])
{
echo "".$_SESSION['username'];
}
else
header ("location: welcome1.html");
?>
" />
</td>
</tr>
<tr>
<td>Who is Obama?</td>
<td><input type="password" name="txtPassword" id="txtPassword" /></td>
</tr>
<tr>
<td>What was the bing thing that were going to happend in 2012?</td>
<td><input type="text" name="txtemail" id="txtemail" /></td>
</tr>
<tr>
<td>What is a farrari?</td>
<td>
<input type="text" name="txtnummer" id="txtnummer" />
</td>
</tr>
<tr>
<td>What is a spoon used for?</td>
<td>
<input type="text" name="txtnummer" id="txtnummer" />
</td>
</tr>
<tr>
<td>Witch letter does this url start with?</td>
<td>
<input type="text" name="txtnummer" id="txtnummer" />
</td>
</tr>
<tr>
<td>Are COD a game?</td>
<td>
<input type="text" name="txtnummer" id="txtnummer" />
</td>
</tr>
<tr>
<td colspan="2" align="center">
<input type="submit" name="btnRegister" id="btnRegister" value="submit" />
</td>
</tr>
</form>
</table>
<table width="328" border="0" align="center">
<form id="form1" name="form1" method="post" action="script2.php">
<tr>
<td colspan="2"><h2 style="color:#FF0000">Quiz2</h2></td>
</tr>
<tr>
<td>UserName:</td>
<td>
<input name="txtusername" type="text" id="txtusername" value="<?php
if ($_SESSION['username'])
{
echo "".$_SESSION['username'];
}
else
header ("location: welcome1.html");
?>
" />
</td>
</tr>
<tr>
<td>Who evented facebook?</td>
<td><input type="password" name="txtPassword" id="txtPassword" /></td>
</tr>
<tr>
<td>What is a cat?</td>
<td><input type="text" name="txtemail" id="txtemail" /></td>
</tr>
<tr>
<td>What is a lamborgini?</td>
<td>
<input type="text" name="txtnummer" id="txtnummer" />
</td>
</tr>
<tr>
<td>What is goodel used for?</td>
<td>
<input type="text" name="txtnummer" id="txtnummer" />
</td>
</tr>
<tr>
<td>What is the last letter in this url</td>
<td>
<input type="text" name="txtnummer" id="txtnummer" />
</td>
</tr>
<tr>
<td>Are Counter strik a game?</td>
<td>
<input type="text" name="txtnummer" id="txtnummer" />
</td>
</tr>
<tr>
<td colspan="2" align="center">
<input type="submit" name="btnRegister" id="btnRegister" value="submit" />
</td>
</tr>
</form>
</table>
<table width="328" border="0" align="center">
<form id="form1" name="form1" method="post" action="script3.php">
<tr>
<td colspan="2"><h2 style="color:#FF0000">Quiz3</h2></td>
</tr>
<tr>
<td>UserName:</td>
<td>
<input name="txtusername" type="text" id="txtusername" value="<?php
if ($_SESSION['username'])
{
echo "".$_SESSION['username'];
}
else
header ("location: welcome1.html");
?>
" />
</td>
</tr>
<tr>
<td>What is yourube used for?</td>
<td><input type="password" name="txtPassword" id="txtPassword" /></td>
</tr>
<tr>
<td>What is a dog?</td>
<td><input type="text" name="txtemail" id="txtemail" /></td>
</tr>
<tr>
<td>What is a kebab?</td>
<td>
<input type="text" name="txtnummer" id="txtnummer" />
</td>
</tr>
<tr>
<td>Who is the most famed tenager in 2012/13?</td>
<td>
<input type="text" name="txtnummer" id="txtnummer" />
</td>
</tr>
<tr>
<td>What is the 4th letter in this url?</td>
<td>
<input type="text" name="txtnummer" id="txtnummer" />
</td>
</tr>
<tr>
<td>100*2 - 5 +105 -55 +45= </td>
<td>
<input type="text" name="txtnummer" id="txtnummer" />
</td>
</tr>
<tr>
<td colspan="2" align="center">
<input type="submit" name="btnRegister" id="btnRegister" value="submit" />
</td>
</tr>
</form>
</table>
</body>
</html>
這裏是劇本我使用的測驗：
<?php
//=============Configuring Server and Database=======
$host = 'localhost';
$user = 'root';
$password = '';
//=============Data Base Information=================
$database = 'login';
$conn = mysql_connect($host,$user,$password) or die('Server Information is not Correct'); //Establish Connection with Server
mysql_select_db($database,$conn) or die('Database Information is not correct');
//===============End Server Configuration============
//=============Starting Registration Script==========
$username = mysql_real_escape_string($_POST['txtusername']);
//=============To Encrypt Password===================
//============New Variable of Password is Now with an Encrypted Value========
if(isset($_POST['btnRegister'])) //===When I will Set the Button to 1 or Press Button to register
{
$query = mysql_query("SELECT * FROM quiz WHERE username='$username'");
if(mysql_num_rows($query) > 0){
echo "Sorry but you can only take a quize once:S";
}else{
mysql_query ("insert into quiz(username)values('$username')");
$sql = "UPDATE users SET points = COALESCE(level,0)+1 WHERE username = $username";
header('location: succes.php');
}
}
?>
再次，這個工作很大。但我只需要讓他們得到1分以上。所以，如果他們有10分和藉此測驗提交
有很多在這個問題上太多的東西。如果你不能將它降低到對問題重要的程度，那麼你可能會問得太早，或者不太瞭解你的代碼！ – markus
不要再使用古代的mysql_ *函數！他們不安全，效率低下。而是使用PDO或mysqli和準備好的語句！ – markus
現在的問題是：我需要什麼代碼才能讓人們點擊提交，然後再獲得1點。更新代碼 – carl