Adding user to MySQL database in php using phpMyAdmin - php

Question

I think I am successfully connecting to my database by:
<?php
$user = 'root';
$pass = '9KSroMDjEqNmEYY4';
$db = 'chatservice';
$host = '127.0.0.1';
$conn = new mysqli($host, $user, $pass, $db, 3306) or die("Unable to connect");
if ($conn->connect_error){
die("Connection failed: " . $conn->connect_error);
}
?>
My question is how I would use the registration code to successfully add a user to the database. When entering the form I press register I do not get any error messages stating that the registration didn't succeed. It seems that the php code is not being reached after the initial connection. I am new to php and mySQL so any tips on formatting would be nice too!
<?php
require('connect.php');
if(isset($_POST['user']) && isset($_POST['password'])){
$user = $_POST['user'];
$id = $_POST['IDNUM'];
$password = $_POST['password'];
$query = "INSERT INTO 'users' (user ,IDNUM ,password) VALUES('$user', '$id', '$password')";
$result = mysqli_query($query);
if($result){
$msg = "Registered Sussecfully";
echo $msg;
}
else
$msg = "Error Registering";
echo $msg;
}
?>
<div class="register-form">
<title>Chat Page Start</title>
<form action="" methods="POST">
<p>
<label>Username: </label>
<input id="user" type="text" name="user" placeholder="user" />
</p>
<p>
<label>ID: </label>
<input id="IDNUM" type="text" name="IDNUM" placeholder="ID number" />
</p>
<p>
<label>Password: </label>
<input id="password" type="password" name="password" placeholder="password" />
</p>
<a class="btn" href="login.php">Login</a>
<input class="btn register" type="submit" value="Register" />
</form>
</div>
Another thing is how would I check the status of my database connection and where I should be checking this status?

Answer 1

your database connection is mysqli_connect and you execute the query in mysql_query is not proper.
<?php
require('connect.php');
if(isset($_POST['user']) && isset($_POST['password'])){
$user = $_POST['user'];
$id = $_POST['IDNUM'];
$password = $_POST['password'];
$query = "INSERT INTO 'users' (user ,IDNUM ,password) VALUES('$user', ' $id ', '$password')";
$result = mysqli_query($query,$conn);
if($result){
$msg = "Registered Sussecfully";
}
else
$msg = "Error Registering";
}
?>

Answer 2

You are connecting database using mysqli:
$conn = new mysqli('localhost', $user, $pass, $db, 3306) or die("Unable to connect");
And executing query using mysql:
$query = "INSERT INTO 'users' (user ,IDNUM ,password) VALUES('$user', '$IDNUM', '$password')";
$result = mysql_query($query);