芝麻web文件管理V1.00

编辑当前文件:/home/freeclou/optimyar/wp-content/plugins/wp-statistics/src/Dependencies/GeoIp2/Util.php
<?php declare(strict_types=1); namespace WP_Statistics\Dependencies\GeoIp2; class Util { /** * This returns the network in CIDR notation for the given IP and prefix * length. This is for internal use only. * * @internal * @ignore */ public static function cidr(string $ipAddress, int $prefixLen): string { $ipBytes = inet_pton($ipAddress); $networkBytes = str_repeat("\0", \strlen($ipBytes)); $curPrefix = $prefixLen; for ($i = 0; $i < \strlen($ipBytes) && $curPrefix > 0; $i++) { $b = $ipBytes[$i]; if ($curPrefix < 8) { $shiftN = 8 - $curPrefix; $b = \chr(0xFF & (\ord($b) >> $shiftN) << $shiftN); } $networkBytes[$i] = $b; $curPrefix -= 8; } $network = inet_ntop($networkBytes); return "$network/$prefixLen"; } }