使用字符串函数 [英] using string functions
问题描述
我正在使用$ ip = $ _SERVER [''REMOTE_ADDR'']检索客户端的IP地址
,例如,如果从$ ip返回的值是
50.160.190.150
i想知道请求来自哪个国家/地区。我相信通过使用
ip地址中的第三组数字(在这种情况下= 190),我们可以找到国家名称。我可以声明一个变量
,其中包含国家名称列表和值范围,我需要帮助
是从$ ip中提取第3组数字。 br />
作为ip地址不断更改第3组数字可以单,
双倍或3位数我们如何提取存储的数字
在第二个点之后和第三个点之前的$ ip
请指教。
谢谢。
i am using $ip= $_SERVER[''REMOTE_ADDR''] to retrieve the ip address of
the client for example if the value returned from $ip is
50.160.190.150
i would like to find out which country the request has come from. i
believe by using the third set of numbers (in this case=190) from an
ip address we can find out the country name. i can declare a variable
with a list of country names and the range of values, what i need help
is to extract the 3rd set of numbers from $ip.
as ip address keep changing the 3rd set of numbers can be single,
double or 3 digit number how can we extract the number that is stored
in $ip after the second dot and before the third dot
please advice.
thanks.
推荐答案
ip =
_SERVER [''REMOTE_ADDR'']来检索
$ b的IP地址$ b客户端,例如,如果从
_SERVER[''REMOTE_ADDR''] to retrieve the ip address of
the client for example if the value returned from
ip返回的值是
50.160.190.150
i想要找出请求来自哪个国家/地区。我相信通过使用
ip地址中的第三组数字(在这种情况下= 190),我们可以找到国家名称。我可以声明一个变量
,其中包含国家名称列表和值范围,我需要帮助
是从
ip is
50.160.190.150
i would like to find out which country the request has come from. i
believe by using the third set of numbers (in this case=190) from an
ip address we can find out the country name. i can declare a variable
with a list of country names and the range of values, what i need help
is to extract the 3rd set of numbers from
中提取第3组数字
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