您好香港專業教育學院創建了一個簡單的登錄一個PHP MySQL的分配:PHP的MySQL登錄頭問題
<?php
/*Initialize session*/
session_start();
/*Store form data in variables*/
$username = $_POST['username'];
$password = $_POST['password'];
/*Connect to the database*/
$conn = mysql_connect("localhost", "twa174" , "a3wgrrzn")
or die ("Could not connect: " .mysql_error());
mysql_select_db("twa174", $conn)
or die ("Could not find Database: " . mysql_error());
/*Create empty error log*/
$errors = '';
/*Check for login attempt*/
if(isset($_POST['submit'])) {
if(!isset($username) || empty($username)) $errors .= '<p>Please enter a
username!</p>';
if(!isset($password) || empty($password)) $errors .= '<p>Please enter a
password!</p>';
/*Initialize login sequence on attempt*/
if(empty($errors)){
$query = mysql_query("SELECT * FROM school_info WHERE schoolID ='".$username."'");
$numrows = mysql_num_rows($query);
if($numrows!=0){
while ($row = mysql_fetch_assoc($query)){
$dbusername= $row['username'];
$dbpassword= $row['password'];
}
if($username==$dbusername&&$password==$dbpassword){
header("Location: leavers.php");
}
else {
$errors .= '<p>Incorrect login details</p>';
}
}
}
}
?>
<?php echo($errors);?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>Login PHP Page</title>
<link href="assign2.css" rel ="stylesheet" type="text/css"/>
</head>
<body>
<form action = "login.php" method="post">
<table>
<tr> <td>Username:</td>
<td><input type="text" name="username" />
</td> </tr>
<tr><td>Password:</td>
<td><input type="password" name="password"/> </td></tr>
<tr><td> <input type="submit" name="submit" value="Submit" </td>
<td> <input type="reset" name="reset" value="Reset"</td></tr>
</table>
</form>
</body>
</html>
是指在用戶名和密碼的正確輸入重定向,而是它沒有停留在同一頁面上事情正確或不正確。
我過去曾經有過擡頭問題。
我不知道如果我有一個太多的括號或它不會重定向,因爲我已經有我的頭函數上面的腳本。
任何人都知道我出錯了嗎?
代碼請...... – 2013-05-05 07:10:19
您的腳本容易受到SQL注入的影響。 – Gumbo 2013-05-05 07:10:45
我知道@Gumbo – user2351394 2013-05-05 07:14:25