Blocking visitors based on their IP Addresses

block ip address.txt

How to Block IP Addresses with PHP
http://perishablepress.com/how-to-block-ip-addresses-with-php/

<?php
$deny = array("111.111.111", "222.222.222", "333.333.333");
if (in_array ($_SERVER['REMOTE_ADDR'], $deny)) {
   header("location: http://www.google.com/");
   exit();
} ?>




http://kb.site5.com/security/how-to-automatically-block-someone-using-a-php-script/
How to Automatically Block Someone using a PHP Script




http://www.blackdog.ie/blog/blocking-ip-ranges-with-php/
Blocking IP ranges with PHP


Block multiple IP addresses with PHP
http://grohsfabian.com/tag/how-to-block-specific-ip-addresses-php/
 
function blockIps($blocked_ip_list){
    $ip = $_SERVER['REMOTE_ADDR'];
    if(in_array($ip, $blocked_ip_list)){
        die("Your IP(" . $ip . ") has been blocked !");
    }
}
 
 
$blocked_ip_list = array("127.0.0.1","127.0.0.2");
blockIps($blocked_ip_list);
 
?>




http://stackoverflow.com/questions/2869893/block-specific-ip-block-from-my-website-in-php

$ip = sprintf('%u', ip2long($_SERVER['REMOTE_ADDR']));

// only allow 10.0.0.0 - 10.255.255.255
if (!($ip >= 167772160 && $ip <=  184549375)) {
    die('Forbidden.');
}



Apache .htaccess Guide & Tutorial >>
Deny visitors by IP address

// The blacklisted ips.
$denied_ips = array(
'1.2.3.4',
'2.3.*',
);

// The function to get the visitor's IP.
function getUserIP(){
    //check ip from share internet
    if (!empty($_SERVER['HTTP_CLIENT_IP'])){
      $ip=$_SERVER['HTTP_CLIENT_IP'];
    }
    //to check ip is pass from proxy
    elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])){
      $ip=$_SERVER['HTTP_X_FORWARDED_FOR'];
    } else {
      $ip=$_SERVER['REMOTE_ADDR'];
    }
    return $ip;
}
//The user
$visitorIp = getUserIP();

// Now let's search if this IP is blacklisted
$status = array_search($visitorIp, $denied_ips);

// Let's check if $status has a true OR false value.
if($status !== false){
    echo '<div class="error">Your IP has been banned! Stop spamming us!</div>';
    // header("Location: http://zombo.com");
    // exit; 
}