新浪接口之PHP根据IP地址获取所在城市

梦里梦外; 2022-07-11 15:22 252阅读 0赞

<?php  
    header('Content-Type:text/html;Charset=utf-8');  
    function GetIp(){  
        $realip = '';  
        $unknown = 'unknown';  
        if (isset($_SERVER)){  
            if(isset($_SERVER['HTTP_X_FORWARDED_FOR']) && !empty($_SERVER['HTTP_X_FORWARDED_FOR']) && strcasecmp($_SERVER['HTTP_X_FORWARDED_FOR'], $unknown)){  
                $arr = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);  
                foreach($arr as $ip){  
                    $ip = trim($ip);  
                    if ($ip != 'unknown'){  
                        $realip = $ip;  
                        break;  
                    }  
                }  
            }else if(isset($_SERVER['HTTP_CLIENT_IP']) && !empty($_SERVER['HTTP_CLIENT_IP']) && strcasecmp($_SERVER['HTTP_CLIENT_IP'], $unknown)){  
                $realip = $_SERVER['HTTP_CLIENT_IP'];  
            }else if(isset($_SERVER['REMOTE_ADDR']) && !empty($_SERVER['REMOTE_ADDR']) && strcasecmp($_SERVER['REMOTE_ADDR'], $unknown)){  
                $realip = $_SERVER['REMOTE_ADDR'];  
            }else{  
                $realip = $unknown;  
            }  
        }else{  
            if(getenv('HTTP_X_FORWARDED_FOR') && strcasecmp(getenv('HTTP_X_FORWARDED_FOR'), $unknown)){  
                $realip = getenv("HTTP_X_FORWARDED_FOR");  
            }else if(getenv('HTTP_CLIENT_IP') && strcasecmp(getenv('HTTP_CLIENT_IP'), $unknown)){  
                $realip = getenv("HTTP_CLIENT_IP");  
            }else if(getenv('REMOTE_ADDR') && strcasecmp(getenv('REMOTE_ADDR'), $unknown)){  
                $realip = getenv("REMOTE_ADDR");  
            }else{  
                $realip = $unknown;  
            }  
        }  
        $realip = preg_match("/[\d\.]{7,15}/", $realip, $matches) ? $matches[0] : $unknown;  
        return $realip;  
    }  
      
    function GetIpLookup($ip = ''){  
        if(empty($ip)){  
            $ip = GetIp();  
        }  
        $res = @file_get_contents('http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js&ip=' . $ip);  
        if(empty($res)){ return false; }  
        $jsonMatches = array();  
        preg_match('#\{.+?\}#', $res, $jsonMatches);  
        if(!isset($jsonMatches[0])){ return false; }  
        $json = json_decode($jsonMatches[0], true);  
        if(isset($json['ret']) && $json['ret'] == 1){  
            $json['ip'] = $ip;  
            unset($json['ret']);  
        }else{  
            return false;  
        }  
        return $json;  
    }  
      
      
    $ipInfos = GetIpLookup('221.208.244.214'); //地址：黑龙江省哈尔滨市 联通
    var_dump($ipInfos);  
    // 展示效果如下
    // array(10) {
    //   ["start"]=>
    //   int(-1)
    //   ["end"]=>
    //   int(-1)
    //   ["country"]=>
    //   string(6) "中国"
    //   ["province"]=>
    //   string(9) "黑龙江"
    //   ["city"]=>
    //   string(9) "哈尔滨"
    //   ["district"]=>
    //   string(0) ""
    //   ["isp"]=>
    //   string(0) ""
    //   ["type"]=>
    //   string(0) ""
    //   ["desc"]=>
    //   string(0) ""
    //   ["ip"]=>
    //   string(15) "221.208.244.214"
    // }