accurate ip address lookup

$useripbegin + = POW (2, 32);$useripend = Implode (' ', Unpack (' L ', $DataEnd));if ($useripend $useripend + = POW (2, 32);$useripAllNum = ($useripend-$useripbegin)/7 + 1;$BeginNum = 0;$EndNum = $useripAllNum;Search for matching IP address records from index records using the binary lookup methodwhile ($userip 1num > $useripNum | | $userip 2num $Middle = Intval

', $DataBegin));if ($useripbegin $useripbegin + + POW (2, 32);$useripend = Implode (', Unpack (' L ', $DataEnd));if ($useripend $useripend + + POW (2, 32);$useripAllNum = ($useripend-$useripbegin)/7 + 1;$BeginNum = 0;$EndNum = $useripAllNum;Search for matching IP address records from index records using the binary lookup methodwhile ($userip 1num > $useripNum |

Analysis processThis comes from a number of projects that capture User IP and conduct user action records that are common and often used. General friends, you will see the following universal Get IP address method. Copy Code code as follows: function GetIP () { if (Isset ($_server[' http_x_forwarded_for ')) { $realip = $_server[' http_x_forwa

sin_family;unsigned short int sin_port;struct IN_ADDR sin_addr;unsigned char sin_zero[8];};A struct in_addr is a 32-bit IP address.struct IN_ADDR {Union {struct {U_char s_b1,s_b2,s_b3,s_b4;} S_un_b;struct {u_short s_w1,s_w2;} S_un_w;U_long s_addr;} S_un;#define S_ADDR S_un. S_addr};Inet_addr () is the conversion of a point-and-click IP address (such as 192.168.0

Taobao Company provides a very useful IP geographic information query interface. Here: http://ip.taobao.com/ TaobaoIPQuery2 This class will greatly simplify the relevant information query. Class TaobaoIPQuery2 File: TaobaoIPQuery2.Class.php: Call: $ip = $_server["REMOTE_ADDR"]; $ipquery = new Taobaoipquery ($IP); $region = $ipquery

Here are a few ways to recommend everyone Method one: In Baidu search "IP" will be directly out of the computer network IP address. Method Two: Open the Start menu, enter "cmd" in the search box-in the pop-up black box entered "ipconfig" Enter to see their own IP address

The getenv ('remote _ ADDR ') method mentioned in PHP manual has many problems in obtaining the Client IP address, therefore, it is necessary to consider using a more comprehensive method to obtain the IP address of the user client more accurately. Getenv (PHP 3, PHP 4, PHP 5) Getenv -- gets the value of an environmen

[To] How is the IP address of the carrier assigned by WHOIS?The IP address distribution of some Chinese telecom operators is obtained under Linux:Apnic is the organization of IP address allocation in the Asia-Pacific region, it ha

Using MaxMind to locate visitors by IP address sometimes you need to know the country from which your site visitors come from-for example, if you are planning to execute an advertising plan for a geographical region. This document introduces this method. Sometimes you need to know the country in which your site visitors come from-for example, if you are planning to launch an advertising program for a geogr