get array of rows with mysqli result

I need to get all the rows from result object. I’m trying to build a new array that will hold all rows.

Here is my code:

$sql = new mysqli($config['host'],$config['user'],$config['pass'],$config['db_name']);
if (mysqli_connect_errno())
{
    printf("Connect failed: %s\n", mysqli_connect_error());
    exit();
}
$query = "SELECT domain FROM services";
$result = $sql->query($query);           
while($row = $result->fetch_row());
{
    $rows[]=$row;
}
$result->close();
$sql->close();
return $rows;

$rows is supposed to be the new array that contains all, rows but instead I get an empty array.

Any ideas why this is happening?

You had a slight syntax problem, namely an errant semi-colon.

while($row = $result->fetch_row());

Notice the semi-colon at the end? It means the block following wasn't executed in a loop. Get rid of that and it should work.

Also, you may want to ask mysqli to report all problems it encountered:

mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$sql = new mysqli($config['host'], $config['user'], $config['pass'], $config['db_name']);

$query = "SELECT domain FROM services";
$result = $sql->query($query);
$rows = [];
while($row = $result->fetch_row()) {
    $rows[] = $row;
}
return $rows;