使用方法
1 2 3 4 5 6 | $allow_ip = array("192.168.1.1","210.10.2.1-20","222.34.4.*","127.0.0.1"); $oBlock_ip = new allowIp($allow_ip); if( !$oBlock_ip->checkIP() ){ exit('您的IP为:'.$oBlock_ip->ip.'禁止访问'); } |
allowIp类
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 | class allowIp { function __construct($allow_ip){ if (empty($allow_ip)) { return false; } $this->allow_ip = $allow_ip; $this->ip = ''; } private function makePregIP($str) { if (strstr($str,"-")) { $aIP = explode(".",$str); foreach ($aIP as $k=>$v) { if (!strstr($v,"-")) { $preg_limit .= $this->makePregIP($v); $preg_limit .= "."; } else{ $aipNum = explode("-",$v); for($i=$aipNum[0];$i<=$aipNum[1];$i++){ $preg .=$preg?"|".$i:"[".$i; } $preg_limit .=strrpos($preg_limit,".",1)==(strlen($preg_limit)-1)?$preg."]":".".$preg."]"; } } } else { $preg_limit = $str; } return $preg_limit; } private function getAllBlockIP(){ if ($this->allow_ip) { $i = 1; foreach ($this->allow_ip as $k=>$v) { $ipaddres = $this->makePregIP($v); $ip = str_ireplace(".","\.",$ipaddres); $ip = str_replace("*","[0-9]{1,3}",$ip); $ipaddres = "/".$ip."/"; $ip_list[] = $ipaddres; $i++; } } return $ip_list; } public function checkIP() { $iptable = $this->getAllBlockIP(); $IsJoined = false; //取得用户ip $Ip = $this->get_client_ip(); $Ip = trim($Ip); //在白名单中 if ($iptable) { foreach($iptable as $value) { if (preg_match("{$value}",$Ip)) { $IsJoined = true; break; } } } //不在白名单中 if( !$IsJoined ){ return false; } return true; } private function get_client_ip(){ if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown")) $ip = getenv("HTTP_CLIENT_IP"); else if (getenv("HTTP_X_FORWARDED_FOR") && strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown")) $ip = getenv("HTTP_X_FORWARDED_FOR"); else if (getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown")) $ip = getenv("REMOTE_ADDR"); else if (isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], "unknown")) $ip = $_SERVER['REMOTE_ADDR']; else $ip = "unknown"; $this->ip = $ip; return($ip); } } |
代码参考 php限制IP和IP段的代码(白名单)
另外,如果我要限址非白名单上的IP,在wordpress中如何实现?
在wp当前模板的functions.php中加入以上代码就可以了.
这个在备案的时候应该用得上!