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? ??? ?? PHP ???? PHP?? ???? ??? IP ??? ?? ??? ??????

PHP?? ???? ??? IP ??? ?? ??? ??????

Dec 17, 2024 am 12:47 AM

How to Get a User's Accurate IP Address in PHP?

PHP?? ???? IP ??? ???? ???? ??

??

???? IP ?? ?? PHP? ??? IP ??? IP ?? ????, ??? ???? ??????? ?? ?????. ?? ?? ??? ??. ??? ???, ?? ??? ? ?? ???? ??? ???? ?? ??? IP ??? ???? ?? ??? ? ????.

IP ?? ?? ?? ??

??? ?? ??? ???, ?? ??? ?? ??? ?? ???? ??? ????. PHP:

$_SERVER ?? ??

PHP? ????? IP ??? ??? ? ?? ?? $_SERVER ??? ?????. ??:

  • HTTP_CLIENT_IP
  • HTTP_X_FORWARDED_FOR
  • HTTP_X_FORWARDED
  • HTTP_X_CL USER_CLIENT_IP
  • HTTP_FORWARDED_FOR
  • HTTP_FORWARDED
  • REMOTE_ADDR

?? ? ???

?? $_SERVER ??? ???? ??? ? ?? ?? ????. HTTP_CLIENT_IP ? REMOTE_ADDR? ?? ???? ?? HTTP_X_FORWARDED_FOR? ?? ???? ? ????.

??? IP ??? ?? ???? ??

??? ??? ??? ???? ?? ?????. ?? ?? $_SERVER ??:

function get_ip_address() {
    if (!empty($_SERVER['HTTP_CLIENT_IP']) && filter_var($_SERVER['HTTP_CLIENT_IP'], FILTER_VALIDATE_IP)) {
        return $_SERVER['HTTP_CLIENT_IP'];
    }

    if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
        $iplist = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
        foreach ($iplist as $ip) {
            if (filter_var(trim($ip), FILTER_VALIDATE_IP)) {
                return $ip;
            }
        }
    }

    return $_SERVER['REMOTE_ADDR'];
}

REMOTE_ADDR ?? ??

REMOTE_ADDR? ????? ??? ? ??? ??? ???? ?????. ???? IP ???? ??? ??????? ?? ????? ??? ?? IP ?? ?????? ??? ?? ?? ??? ?? ??? ???? ?? ????.

?? ?? ??

  • IP ?? ??: FILTER_FLAG_NO_PRIV_RANGE? ?? filter_var()? ???? FILTER_FLAG_NO_RES_RANGE? ?? ? ??? IP ??? ?????.
  • IPv6 ?? ??? ??: IPv6 ???? ???? ?? IPv6 ??? ????? ??? ?? ??? ?????.
  • ??? ?? ??: ???? ? ? ?? ??? ??? ???? ???? ???? ???? ?? ?? ??? ?????. IP ?? ??? ?????.

? ??? PHP?? ???? ??? IP ??? ?? ??? ??????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!

? ????? ??
? ?? ??? ????? ???? ??? ??????, ???? ?????? ????. ? ???? ?? ???? ?? ??? ?? ????. ???? ??? ???? ???? ??? ?? admin@php.cn?? ?????.

? AI ??

Undresser.AI Undress

Undresser.AI Undress

???? ?? ??? ??? ?? AI ?? ?

AI Clothes Remover

AI Clothes Remover

???? ?? ???? ??? AI ?????.

Video Face Swap

Video Face Swap

??? ??? AI ?? ?? ??? ???? ?? ???? ??? ?? ????!

???

??? ??

???++7.3.1

???++7.3.1

???? ?? ?? ?? ???

SublimeText3 ??? ??

SublimeText3 ??? ??

??? ??, ???? ?? ????.

???? 13.0.1 ???

???? 13.0.1 ???

??? PHP ?? ?? ??

???? CS6

???? CS6

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SublimeText3 Mac ??

SublimeText3 Mac ??

? ??? ?? ?? ?????(SublimeText3)

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