PHP调用外部服务获取IP地域信息实现信息的地域性关联
最近项目要求地域分布信息显示,就对IP及省市信息进行了下了解.
使用了如下2个方案来实现,用户周边信息的获取实现
1.使用了IP库,纯真IP库,可是数据库更新比较慢,文件庞大,相对所需要的资源占用较多.
2.调用open.baidu.com的IPSEARCH服务,使用了IP138的数据库,来获取IP所在省市信息,然后在搜索本地数据库(ecshop的region表)得到相对应的regionid ,通过ID关联相关数据
今天测试了下感觉比较不错贴出实现代码.
/**
* 获取IP所在城市的信息
* TODO:需要构造IP地址缓存
* @param string $ip
*/
function get_city($ip=null) {
import('ORG.Util.Utility');
$array = array();
$d = M('region');
//TODO:这里可以构造缓存以提高加载速度,这里搜索 市 列表 $cities = $d->where('`regiontype`=2')->select(); $ip = ($ip) ? $ip : get_client_ip();
$url = "http://open.baidu.com/ipsearch/s?wd={$ip}&tn=baiduip";
$res = mb_convert_encoding(Utility::HttpRequest($url), 'UTF-8', 'GBK');
if ( preg_match('#来自:(.+)#Ui', $res, $m) ) {
foreach( $cities AS $value) {
if ( FALSE !== strpos($m[1], $value['regionname']) ) {
//返回所在城市的IP信息
$array['c']=$value;
$array['p']=$d->where('`regionid`='.$value['parentid'])->find();
return $array;
}
}
}
return array();
}
调用返回的结果如下array
'c' =>
array
'regionid' => string '386' (length=3)
'parentid' => string '31' (length=2)
'regionname' => string '金华' (length=6)
'regiontype' => string '2' (length=1)
'agencyid' => string '0' (length=1)
'ename' => string 'jinhua' (length=6)
'p' =>
array
'regionid' => string '31' (length=2)
'parentid' => string '1' (length=1)
'regionname' => string '浙江' (length=6)
'regiontype' => string '1' (length=1)
'agencyid' => string '0' (length=1)
'ename' => string 'zhejiang' (length=8)
用了IP测试了下,信息还是比较准确的,IP138的IP数据库和123CHA的数据库都是国内时间库里面相对比较全面的一个.通过这种方式,性能上还可以。

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