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@ 2014-10-30T02:52:07Z

<?php
$ipaddress = '';

if($_SERVER['HTTP_X_FORWARDED_FOR'] && ($_SERVER['HTTP_X_FORWARDED_FOR']<>$ipaddress)){
$proxies=explode(",",$_SERVER['HTTP_X_FORWARDED_FOR']);
$ipaddress=$proxies[count($proxies)-1];
//$ipaddress=$proxies[0];
}else{


    if (getenv('HTTP_CLIENT_IP')){
        $ipaddress = getenv('HTTP_CLIENT_IP');
}elseif(getenv('HTTP_X_FORWARDED_FOR')){
        $ipaddress = getenv('HTTP_X_FORWARDED_FOR');
}elseif(getenv('HTTP_X_FORWARDED')){
        $ipaddress = getenv('HTTP_X_FORWARDED');
}elseif(getenv('HTTP_FORWARDED_FOR')){
        $ipaddress = getenv('HTTP_FORWARDED_FOR');
}elseif(getenv('HTTP_FORWARDED')){
       $ipaddress = getenv('HTTP_FORWARDED');
}elseif(getenv('REMOTE_ADDR')){
        $ipaddress = getenv('REMOTE_ADDR');
}else{
        $ipaddress = 'UNKNOWN';
}
}
//echo $ipaddress;
?>

Output for git.master, git.master_jit, rfc.property-hooks: Warning: Undefined array key "HTTP_X_FORWARDED_FOR" in /in/qHlVK on line 4

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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