PHP code being reported as malware - php

Question

I have been working on a website on a localhost and have just tried to upload it to a free webserver so I can get some testers, for some reason my code is being reported as malware and is being blocked by my antivirus, this means I can't see anything when visiting it apart from the ERR_CONNECTION_RESET. Have you guys got any ideas as to why this code is being detected as malware?
LOGIN.php
<?php
include('classes/db.php');
if (db::maintenance()) {
die('This site is currently going under maintenance, please check back again shortly.');
}
if (isset($_POST['submit'])) {
$username = $_POST['username'];
$password = $_POST['password'];
if (db::query('SELECT username FROM users WHERE username=:username', array(':username'=>$username))) {
if (password_verify($password, db::query('SELECT password FROM users WHERE username=:username', array(':username'=>$username))[0]['password'])) {
echo "Logged in!";
$cstrong = True;
$token = bin2hex(openssl_random_pseudo_bytes(64, $cstrong));
$user_id = db::query('SELECT id FROM users WHERE username=:username', array(':username'=>$username))[0]['id'];
db::query('INSERT INTO login_tokens VALUES (NULL, :token, :user_id)', array(':token'=>sha1($token), ':user_id'=>$user_id));
setcookie("SNID", $token, time() + 60 * 60 * 24 * 7, '/', NULL, NULL, TRUE);
setcookie('SNID_', '1', time() + 60 + 60 * 24 * 3, '/', NULL, NULL, TRUE);
header('Location: index.php');
} else {
echo "Incorrect password";
}
} else {
echo "User not registered!";
}
}
?>
<h1>Login to your account</h1>
<form action="login.php" method="post">
<input type="text" name="username" value="" placeholder="Username"><p />
<input type="password" name="password" value="" placeholder="Password"><p />
<input type="submit" name="submit" placeholder="Login"><p />
</form>
DB.php
(I have changed the connection to false data, and changed it to the correct data when uploading it to the host.)
<?php
class db {
private static function connect () {
$conn = new PDO('mysql:host=localhost;dbname=users;,charset=utf8', 'root', '');
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
return $conn;
}
public static function query ($sql, $params = array()) {
$statement = self::connect()->prepare($sql);
$statement->execute($params);
if (explode(' ', $sql)[0] == 'SELECT') {
$result = $statement->fetchAll();
return $result;
}
}
public static function notify ($userid) {
$notifications = db::query('SELECT forum_members.forum_id, notifications.user_id, notifications.post_id, notifications.forum_id, notifications.post_body, notifications.creation, notifications.type FROM forum_members, notifications WHERE (notifications.forum_id=forum_members.forum_id OR notifications.forum_id=0) AND notifications.user_id=forum_members.user_id ORDER BY notifications.post_id DESC');
return $notifications;
}
public static function maintenance () {
return false;
}
}
?>

Answer 1

Which type of address do you use to enter the website? PHP source doesn't display to browsers, so PHP isn't the problem.
If you enter in with a hostname (Ex. .....2cc.brad....net) Then it'll automatically get detected as a "malware" for beginner safety, if ur accessing it from localhost/127.0.0.1 it should be fine, but if ur accessing it from a host that's marked as malware, than yep.