how to get users ip address in php

1The simplest way to collect the Client/Visitor IP address using PHP is the REMOTE_ADDR.
2Pass the 'REMOTE_ADDR' in PHP $_SERVER variable. It will return the IP address of the visitor who is currently viewing the webpage.
3
4Get the IP address of the website
5<?php
6echo 'User IP Address : '. $_SERVER['REMOTE_ADDR'];
7?>
8  
9/*
10I Hope it will help you.
11Namaste
12Stay Home Stay Safe
13*/

1$ip = $_SERVER['REMOTE_ADDR'];

1function getIp() {
2    $ip = $_SERVER['REMOTE_ADDR'];
3 
4    if (!empty($_SERVER['HTTP_CLIENT_IP'])) {
5        $ip = $_SERVER['HTTP_CLIENT_IP'];
6    } elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
7        $ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
8    }
9 
10    return $ip;
11}

1#to best handle proxies use this:
2if (!empty($_SERVER['HTTP_CLIENT_IP'])) {
3    $ip = $_SERVER['HTTP_CLIENT_IP'];
4} elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
5    $ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
6} else {
7    $ip = $_SERVER['REMOTE_ADDR'];
8}

1<?php
2
3// Most effective way to get users IP
4function get_ip_address(){
5    foreach (array('HTTP_CLIENT_IP', 'HTTP_X_FORWARDED_FOR', 'HTTP_X_FORWARDED', 'HTTP_X_CLUSTER_CLIENT_IP', 'HTTP_FORWARDED_FOR', 'HTTP_FORWARDED', 'REMOTE_ADDR') as $key){
6        if (array_key_exists($key, $_SERVER) === true){
7            foreach (explode(',', $_SERVER[$key]) as $ip){
8                $ip = trim($ip); // just to be safe
9
10                if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE) !== false){
11                    return $ip;
12                }
13            }
14        }
15    }
16}
17
18?>