What is wrong with this code, please help

Question

error: Warning: mysqli_query() expects parameter 1 to be mysqli, string given in C:\xampp\htdocs\ap\a.php on line 28
Error: INSERT INTO feedback (Name, Email, Subject Matter ,Message) VALUES ('assda','sadsa','subject goes hsdaaasere','type in a dsad here')

<?php
$servername = "127.0.0.1";
$username = "root";
$password = "Password";
$dbname = "shop";

$name = $_POST['name'];
$email= $_POST['email'];
$subject = $_POST['subject'];
$message = $_POST['message'];

// Create connection
$conn = mysqli_connect($servername, $username, $password, $dbname);
// Check connection
if (!$conn) {
die("Connection failed: " . mysqli_connect_error());
}

$sql="INSERT INTO feedback (Name, Email, Subject Matter ,Message)
VALUES ('$name','$email','$subject','$message')";

if (mysqli_query($sql,$conn)) {
echo "New record created successfully";
} else {
echo "Error: " . $sql . "<br>" . mysqli_error($conn);
}

mysqli_close($conn);
?>

Answer 1

Thank you, the reason why my data wasnt being inserted into the database was because one of my column names in the table of my database had a space in it lol. What a frustratingly small mistake. I initially had the variables swapped the other way around but it still didnt work, i know why now lol. Thank you for your help.

Answer 2

The connection is the first parameter and query is the second one