Convert an ip address to long integer created by matchilling - https://repl.it/ICl2/1

Convert an ip address to long integer.php

function ipToInteger ($ip) {
  if (empty($ip)) return 0;

  $parts = explode('.', $ip);
  return $parts[3] + $parts[2] * 256 + $parts[1] * 256 * 256 + $parts[0] * 256 * 256 * 256;
}

$id                = '5.148.106.4';
$uk                = [35149824, 93968953];
$ipNumber          = ipToInteger($id);
$isInUnitedKingdom = $ipNumber >= $uk[0] && $ipNumber <= $uk[1];

echo sprintf(
  'The ip address "%s" translates to ip number "%s" and %s the United Kingdom.',
  $id,
  $ipNumber,
  $isInUnitedKingdom ? 'is mapped to' : 'is not mapped to'
) . "\n";