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IP范围匹配
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| <?php | |
| function ipMatch($network, $ip) | |
| { | |
| $network=trim($network); | |
| $orig_network = $network; | |
| $ip = trim($ip); | |
| if ($ip == $network) { | |
| echo "used network ($network) for ($ip)\n"; | |
| return TRUE; | |
| } | |
| $network = str_replace(' ', '', $network); | |
| if (strpos($network, '*') !== FALSE) { | |
| if (strpos($network, '/') !== FALSE) { | |
| $asParts = explode('/', $network); | |
| $network = @ $asParts[0]; | |
| } | |
| $nCount = substr_count($network, '*'); | |
| $network = str_replace('*', '0', $network); | |
| if ($nCount == 1) { | |
| $network .= '/24'; | |
| } else if ($nCount == 2) { | |
| $network .= '/16'; | |
| } else if ($nCount == 3) { | |
| $network .= '/8'; | |
| } else if ($nCount > 3) { | |
| return TRUE; // if *.*.*.*, then all, so matched | |
| } | |
| } | |
| echo "from original network($orig_network), used network ($network) for ($ip)\n"; | |
| $d = strpos($network, '-'); | |
| if ($d === FALSE) { | |
| $ip_arr = explode('/', $network); | |
| if (!preg_match("@\d*\.\d*\.\d*\.\d*@", $ip_arr[0], $matches)){ | |
| $ip_arr[0].=".0"; // Alternate form 194.1.4/24 | |
| } | |
| $network_long = ip2long($ip_arr[0]); | |
| $x = ip2long($ip_arr[1]); | |
| $mask = long2ip($x) == $ip_arr[1] ? $x : (0xffffffff << (32 - $ip_arr[1])); | |
| $ip_long = ip2long($ip); | |
| return ($ip_long & $mask) == ($network_long & $mask); | |
| } else { | |
| $from = trim(ip2long(substr($network, 0, $d))); | |
| $to = trim(ip2long(substr($network, $d+1))); | |
| $ip = ip2long($ip); | |
| return ($ip>=$from and $ip<=$to); | |
| } | |
| } |
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