當我運行的代碼沒有語法或任何錯誤實際上OCUR但問題是,SQL查詢似乎沒有被閱讀的用戶名和密碼:PHP和MySQL登錄錯誤存在的
這裏是我所得到的當我運行的代碼,並嘗試登錄:
That information is incorrect, try again Click Here
這裏是PHP
<?php
if(isset($_POST["username"]) && isset($_POST["password"])){
$manager = preg_replace('#[^A-Za-z0-9]#i','',$_SESSION["username"]);
$password = preg_replace('#[^A-Za-z0-9]#i','',$_SESSION["password"]);
include"db_connection.php";
$sql = mysql_query("SELECT id FROM admin WHERE username='$manager' AND password='$password'");
$existCount = mysql_num_rows($sql);
if ($existCount ==1){
while($row = mysql_fetch_array($sql)){
$id=$row["id"];
}
$_SESSION["id"]=$id;
$_SESSION["manager"]=$manager;
$_SESSION["password"]=$password;
header("location:index.php");
exit();
}else{
echo'That information is incorrect, try again<a href="index.php"> Click Here</a>';
exit();
}
}
?>
下面是HTML:
<html>
<head>
<title> Admin Login Page</title>
<head>
<body>
<div align="center" id="mainWrapper">
<div id="pageContent"><br/>
<div align="left" style="margin-left:24px;">
<h2> Please log in To manage the store</h2>
<form id="form1" name="form1" method="post" action="admin_login.php">
User Name: <br/>
<input name="username" type="text" id="username" size="40"/>
<br/></br>
Password: <br/>
<input name="password" type="password" id="password" size="40">
<br/>
<br/>
<br/>
<br/>
<br/>
<label>
<input type="submit" name="button" id="button" value="LogIn">
</label>
</form>
</body>
</html>
感謝我固定的@jan的方式,但我仍然得到同樣的錯誤 – user3311898
我們對我們的方式:-)。你得到的錯誤究竟是什麼? – jan
:)呃,錯誤是當我嘗試登錄它給了我'這個信息是不正確的,當再次輸入用戶名和密碼時,請再次點擊這裏'@jan – user3311898