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What is the most accurate way to retrieve a user's correct IP address in PHP?
I know there are a plethora of $_SERVER variables headers available for IP address retrieval. I was wondering if there is a general consensus as to how to most accurately retrieve a user's real IP address (well knowing no method is perfect) using said variables?
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Getting visitors country from their IP
I want to get visitors country via their IP... Right now I'm using this ( http://api.hostip.info/country.php?ip= ...... )
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How to convert UTF-8 byte[] to string?
... answered Oct 16 '14 at 1:04
Erçin DedeoğluErçin Dedeoğlu
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APT command line interface-like yes/no input?
...t instead of a bool is a mystery to me though.
– François Leblanc
Jan 19 '18 at 13:38
@FrançoisLeblanc as to Why it ...
记一次MongoDB性能问题 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...介绍，按如下设置搞定：
shell> echo 0 > /proc/sys/vm/zone_reclaim_mode
shell> numactl --interleave=all mongod [options]
关于zone_reclaim_mode内核参数的说明，可以参考官方文档。
注：从MongoDB1.9.2开始：MongoDB会在启动时自动设置zone_reclaim_mode。
至...
Azure table storage returns 400 Bad Request
...hey don't get populated with the default values.
Have a look at Juha Palomäki's answer below as well... there sometimes is a slightly more useful message in the exception where he suggests (RequestInformation.ExtendedErrorInformation.ErrorMessage)
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Pointer to pointer clarification
...an address, it returns the object at that memory address. So when you do *ipp = ip2, what you are doing is *ipp get the object at the address held in ipp which is ip1 and then assign to ip1 the value stored in ip2, which is the address of j.
Simply
& --> Address of
* --> Value at
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Redis消息通知系统的实现 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...，效率没得说。
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最近Tumblr发表了一篇类似的文章：Staircar: Redis-powered notifications，介绍了他们使用Redis实现消息通知系统的一些情况，有兴趣的不妨一起看看。
Redis 消息通知
What is the difference between RDF and OWL? [closed]
...ormal programming, such as a C struct, isn't fussed about and is closer to AI research & set theory.
Triples & URIs
Subject - Predicate - Object
These describe a single fact. Generally URI's are used for the subject and predicate. The object is either another URI or a literal such as a n...