ip获取所在城市名称等信息接口，及函数

函数：

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function https_request($url,$data = null){     $curl = curl_init();           curl_setopt($curl,CURLOPT_URL,$url);     curl_setopt($curl,CURLOPT_SSL_VERIFYPEER,false);     curl_setopt($curl,CURLOPT_SSL_VERIFYHOST,false);           if(!empty($data)){//如果有数据传入数据         curl_setopt($curl,CURLOPT_POST,1);//CURLOPT_POST 模拟post请求         curl_setopt($curl,CURLOPT_POSTFIELDS,$data);//传入数据     }           curl_setopt($curl,CURLOPT_RETURNTRANSFER,1);     $output = curl_exec($curl);     curl_close($curl);           return $output; }   // 获取ip 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; }

淘宝接口：

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function get_area($ip = ''){     if($ip == ''){         $ip = GetIp();     }     $url = "http://ip.taobao.com/service/getIpInfo.php?ip={$ip}";     $ret = https_request($url);     $arr = json_decode($ret,true);     return $arr; }   echo "<pre>"; print_r(get_area('223.67.235.28')); echo "</pre>";

新浪接口：

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//根据ip获取所在城市名称 function GetIpLookup($ip = ''){     if(empty($ip)){         $ip = GetIp();     }     $res = @file_get_contents('http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js&ip=' . $ip);//新浪的开放API     if(empty($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; }   echo '<pre>'; // 输出城市等信息 $ipInfos = GetIpLookup('123.125.114.144'); //baidu.com IP地址 var_dump($ipInfos);   // 输出本地地址 echo GetIp();