PHP IP Deny using Array

IP Deny using Array

<?php
$banip = array (
    '127.0.0.1',
    '127.0.0.2',
    '127.0.0.3'
);

if (in_array($_SERVER['REMOTE_ADDR'], $banip)) {
    echo "You are banned from this website!";
    exit;
}
else {
    echo "no match";
}
?>