Created
May 6, 2016 12:51
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获取客户端IP
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| public static function get_client_ip($type=0,$adv=false){ | |
| $type=$type?1:0; | |
| static $ip=null; | |
| if($ip!==null){ | |
| return $ip[$type]; | |
| } | |
| if($adv){ | |
| if(isset($_SERVER['HTTP_X_FORWARDED_FOR'])){ | |
| $arr=explode(',',$_SERVER['HTTP_X_FORWARDED_FOR']); | |
| $pos=array_search('unknown',$arr); | |
| if(false!==$pos){ | |
| unset($arr[$pos]); | |
| } | |
| $ip=trim($arr[0]); | |
| }elseif(isset($_SERVER['HTTP_CLIENT_IP'])){ | |
| $ip=$_SERVER['HTTP_CLIENT_IP']; | |
| }elseif(isset($_SERVER['REMOTE_ADDR'])){ | |
| $ip=$_SERVER['REMOTE_ADDR']; | |
| } | |
| }elseif(isset($_SERVER['REMOTE_ADDR'])){ | |
| $ip=$_SERVER['REMOTE_ADDR']; | |
| } | |
| // IP地址合法验证 | |
| $long=sprintf("%u",ip2long($ip)); | |
| $ip=$long?[ | |
| $ip, | |
| $long | |
| ]:[ | |
| '0.0.0.0', | |
| 0 | |
| ]; | |
| return $ip[$type]; | |
| } |
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