Form doesn't send post - php

Question

Here is my form, it send POST to loginuser.php it have drop-down list which was read users from database.
<form action="loginuser.php" method="POST">
<div class="form-group">
<select name="userList">
<option> - - - </option>
<?php
include 'db.php';
$sql = "SELECT username FROM dbusers";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
while($row = $result->fetch_assoc()) {
echo "<option>" . $row["username"]. "</option>";
}
}
?>
</select>
</div>
<div class="form-group">
<input name "password" type="password" class="form-control" id="inputPassword">
</div>
<div class="form-group">
<button type="submit" class="btn btn-info btn-sm btn-block">Login</button>
</div>
</form>
And this is my loginuser.php - when i push the Login button it send me to localhost/loginuser.php but it show "TEST-FALSE"
<?php
session_start();
require('db.php');
if (isset($_POST['username']) and isset($_POST['password'])){
echo "TEST - GOOD";
$username = $_POST['username'];
$password = $_POST['password'];
$query = "SELECT * FROM `dbusers` WHERE username='$username' and password='$password'";
$result = mysqli_query($conn, $query) or die(mysqli_error($conn));
$count = mysqli_num_rows($result);
if ($count == 1){
$_SESSION['username'] = $username;
}else{
$fmsg = "Invalid Login Credentials.";
}
}
if (isset($_SESSION['username'])){
$username = $_SESSION['username'];
echo "Succes";
}else{
echo "TEST - FALSE";
}
?>
Also, my connection in db.php work because script on form show users correctly.

Answer 1

I changed some pass values in select drop down in your front end like and i dont know name=password is typo error or not :
<form action="loginuser.php" method="POST">
<div class="form-group">
<select name="userList">
<option> - - - </option>
<?php
include 'db.php';
$sql = "SELECT username FROM dbusers";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
while($row = $result->fetch_assoc()) {
echo "<option value='".$row["username"]."'>" . $row["username"]. "</option>";
}
}
?>
</select>
</div>
<div class="form-group">
<input name="password" type="password" class="form-control" id="inputPassword">
</div>
<div class="form-group">
<button type="submit" class="btn btn-info btn-sm btn-block">Login</button>
</div>
and your php code is like:
<?php
session_start();
require('db.php');
if (isset($_POST['userList']) && isset($_POST['password'])){
echo "TEST - GOOD";
$username = $_POST['userList'];
$password = $_POST['password'];
$query = "SELECT * FROM `dbusers` WHERE username='$username' and password='$password'";
$result = mysqli_query($conn, $query) or die(mysqli_error($conn));
$count = mysqli_num_rows($result);
if ($count == 1){
$_SESSION['username'] = $username;
}else{
$fmsg = "Invalid Login Credentials.";
}
}
if (isset($_SESSION['username'])){
$username = $_SESSION['username'];
echo "Succes";
}else{
echo "TEST - FALSE";
}
?>
Note: Please avoid the sql injection try to use PDO.,

Answer 2

You wrote this
<div class="form-group"> <input name "password" type="password" class="form-control" id="inputPassword"> </div>
Correct with this
<div class="form-group"> <input name="password" type="password" class="form-control" id="inputPassword"> </div>
name="password" (=) missing