public-ip-locally.php

<?php
/**
 * Plugin Name: Public IP FIx
 * Plugin URI:  https://kungfugrep.com
 * Description: For testing IP sensitive code, use the public facing IP in your localhost
 * Version:     1.0
 * Author:      Filament Studios
 * Author URI:  https://filament-studios.com
 * License:     GPL-2.0+
 */

/**
 *
 * The point of this plugin is to allow a local development environment to identify
 * the REMOTE_ADDR of the user as the public facing IP, which is able to be used in
 * GeoIP lookups and WHOIS checks for things like fraud services and other types of
 * eCommerce and rate limiting checks
 *
 */


if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

function kfg_use_external_ip() {

	
	$ip = get_transient( '_kfg_remote_ip' );
	// When testing this by manually changing the IP below on line 49, uncomment the following line
	// $ip = false;

	if ( false === $ip ) {
		$response = wp_remote_get( 'http://bot.whatismyipaddress.com/' );

		if ( ! is_wp_error( $response ) ) {
			$body = wp_remote_retrieve_body( $response );
			$ip = $body;
			set_transient( '_kfg_remote_ip', $ip, HOUR_IN_SECONDS );
		}

	}

	if ( false !== filter_var( $ip, FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE ) ) {
		$_SERVER['REMOTE_ADDR'] = $ip;
	}
	
	/**
	 * If you want to use a specific IP Address just uncomment out the following line, and put in the IP you want to use
	 */
	// $_SERVER['REMOTE_ADDR'] = '123.123.123.123';
}
add_action( 'plugins_loaded', 'kfg_use_external_ip', 1 );