PHP网站怎么才能限制IP
PHP网站如何才能限制IP？
因为一些原因需要限制网站只让北京的用户能访问，该如何配置呢？难道是去别的地方下IP库，然后每次访问查询一次数据库，如果不是北京的就跳到首页嘛？这个貌似成本有点高哦。。
谢谢~
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没办法，只能这样，也只能根据ip来判断，而且还有被冒充的可能
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只能这样干，还有误伤的可能，人家用代理，你也没办法，使用手机验证自己看下行的通不？
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ip地址好像是有规律的。。每个地方的不一样。具体去网上查查ip的分配规律。如果能找出规律也就不用数据库了。直接判断看匹不匹配。
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这是为什么呢
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