the simple php method to check phone number roundish amount
<?php
require_once __DIR__."/check_phone_roundish.php";
$numbers = [
"9900153555",
"9129151718",
"9301233210",
"9381238543",
"9030001020",
"9159165060",
];
foreach($numbers as $number) {
echo $number . " : " . check_phone_roundish($number,3)['score'] . "\n";
}