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<?php
namespace Ip2c\Ip;
class IpUtil
{
/**
* A*256^3 + B*256^2 + C*256 + D
* @param string $ip
* @return int|bool
*/
public function ip2long($ip)
if (!$this->validateIp($ip)) {
return false;
}
$parts = explode('.', $ip);
$sumParts = array();
$partIndex = 0;
for ($exponent = 3; $exponent >= 0; $exponent--) {
$sumParts[] = pow(256, $exponent) * $parts[$partIndex];
$partIndex++;
return array_sum($sumParts);
private function validateIp($ipV4)
$parts = explode('.', $ipV4);
if (count($parts) != 4) {
foreach ($parts as $part) {
if ($part < 0 || $part > 255 || !$part) {
return true;
wakumaku /
ip2c
