MySQLi results disappear on webserver, but stick on localhost - php

Question

I have no idea what's happening.
So on local host, everything loads perfectly fine:
Localhost
and this is the code for connecting:
$servername = 'localhost';
$username = 'root';
$dbname = 'x';
$password = '';
and on the webserver, it does not:
Webserver
and this is the code for the webserver:
$servername = 'localhost';
$username = 'parawtme_root';
$dbname = 'parawtme_xx';
$password = 'password_goes_here';
This is the only different bit in the code. Literally. What am I doing wrong?
My fetch script:
<?php
$sql = "$getdb
WHERE $tablenames.$pricename LIKE 'M9%'";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
echo $tableformat;
while($row = $result->fetch_assoc()) {
include 'var.php';
echo $dbtable;
}
echo "</table>";
} else {
echo "0 results";
}
?>
Could it be do to a difference in different PHP servers?
Thanks.

Answer 1

Check connection error and mysqli query error
<?php
$servername = 'localhost';
$username = 'parawtme_root';
$dbname = 'parawtme_xx';
$password = 'password_goes_here';
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "$getdb
WHERE $tablenames.$pricename LIKE 'M9%'";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
echo $tableformat;
while($row = $result->fetch_assoc()) {
include 'var.php';
echo $dbtable;
}
echo "</table>";
} else {
echo "0 results "; print_r(mysqli_error($conn));die;
}
?>