-1
好吧,我知道這個問題之前已經被問過了,但是我沒有找到的東西已經被用作解決方案。我不斷收到21號錯誤:mysqli_num_rows()期望參數1是mysqli_result,布爾給出
<?php
include("config.php");
$con = mysqli_connect("$host", "$mysqlusername", "$mysqlpassword")or die("cannot connect");
$username=$_POST['username'];
$password=$_POST['password'];
$password2=$_POST['password2'];
$email=$_POST['email'];
if ($password == $password2) {
}
else
{
echo "Passwords did not match.";
}
$encryptedpass = md5($password);
$query = mysqli_query($con,"SELECT * FROM members WHERE username = '". $username ."' OR email = '". $email ."'");
if (mysqli_num_rows($query) > 0)
{
echo 'Username or email already in use.';
}
else
{
mysqli_query($con,"INSERT INTO members (username, password, email)
VALUES ('$username', '$encryptedpass','$email')");
}
mysqli_close($con);
?>
此外,我知道我有一個MySQL注入漏洞。那麼任何人都可以幫助我?
謝謝你,我忘了選擇數據庫....我花了幾個月的時間從編碼中解脫出來,並且我猜想有點滑倒。 – Nightmare