PHP get IP address output to an array program code _php tutorial

There are many ways to get an IP address in PHP, below I introduce the use of Linux command to obtain an IP address and then convert the output of the array, the following is also introduced some common examples of PHP IP address processing.

PHP Gets the server IP address

Execute ifconfig with PHP to obtain the Linux server IP and output an array, the following is the code:

The code is as follows

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function Getserverip () {//Read the server IP with ifconfig and output an array $SS = EXEC ('/sbin/ifconfig | sed-n ' s/^ *.*addr:\ ([0-9.] \{7,\}\). *$/\1/p ", $arr); return $arr; } $ips =getserverip (); foreach ($ips as $k = + $v) {//filter IP if (substr ($v, 0,3) = = ' 127 ' | | substr ($v, 0,3) = = ', ' | | substr ($v, 0,7) = = ' 192.168 ' | | substr ($v, 0,6) = = ' 172.16 ') { Unset ($ips [$k]); } } Shuffle ($ips);//Reorder Print_r ($ips); ?>

Some PHP get IP address examples

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function GetIP () { if (!empty ($_server["Http_client_ip")) { $cip = $_server["Http_client_ip"]; } ElseIf (!empty ($_server["Http_x_forwarded_for")) { $cip = $_server["Http_x_forwarded_for"]; } ElseIf (!empty ($_server["REMOTE_ADDR")) { $cip = $_server["REMOTE_ADDR"]; } else{ $CIP = "Cannot get!" "; } return $CIP; } echo GetIP (); ?>

I have a more common method here to get the User IP address:

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function Get_user_ip () { if (Isset ($_server[' http_client_ip ')) && $_server[' http_client_ip ']!= ' unknown ') { $ip = $_server[' http_client_ip '); } elseif (Isset ($_server[' http_x_forwarded_for ") && $_server[' http_x_forwarded_for ']!= ' unknown ') { $ip = $_server[' http_x_forwarded_for '); } else { $ip = $_server[' remote_addr '); } return $IP; }

PHP Get IP location (call Sina API for IP location)

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function Get_location ($IP) { $curl = Curl_init (); curl_setopt ($curl, Curlopt_url, "http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=json&ip=". $ip); $location = curl_exec ($curl); $location = Json_decode ($location); if ($location ===false) return ""; return empty ($location->desc)? $location->province. $location->city. $location->district. $location->isp: $location->desc; }

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