<?phpinclude ("conn.php");if($_POST[submit]){
$username=$_POST[username];
$sql="select * from `user_list` where username=$username";
$query=mysql_query($sql);
$row=mysql_fetch_array($query);
if($_POST[password]==$row[password]){
echo "登陆成功";
}else{
echo "登陆失败";
}
}
?>
<form action="login.php" method="post">用户名:<input type="text" name="username"><br>
密 码:<input type="password" name="password"><br>
验证码:<input type="text" name="code" size="10"> <img src="img.php"><br>
<input type="submit" value="登陆"></form>
为什么点击登录,什么效果也没?
$username=$_POST[username];
$sql="select * from `user_list` where username=$username";
$query=mysql_query($sql);
$row=mysql_fetch_array($query);
if($_POST[password]==$row[password]){
echo "登陆成功";
}else{
echo "登陆失败";
}
}
?>
<form action="login.php" method="post">用户名:<input type="text" name="username"><br>
密 码:<input type="password" name="password"><br>
验证码:<input type="text" name="code" size="10"> <img src="img.php"><br>
<input type="submit" value="登陆"></form>
为什么点击登录,什么效果也没?
然后就是 sql语句啦。
2.$username = $_POST['username'] 【】内要有单引号
3.从你得代码没看出 验证码 是如何判断的