<?php
function formatPhoneNumber($phoneNumber) {
    // Remove all non-digit characters
    $phoneNumber = preg_replace('/\D/', '', $phoneNumber);

    // Add formatting based on your desired format
    return str_replace(['000', '111', '222', '333', '444', '555', '666', '777', '888', '999'], ['(', ') ', '-'], $phoneNumber);
}

// Test the function
$phoneNumber = "123-456-7890";
$formattedNumber = formatPhoneNumber($phoneNumber);
echo "Formatted Phone Number: " . $formattedNumber;