PHP code example of jaaulde / php-ipv4

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

jaaulde / php-ipv4 example snippets

use \JAAulde\IP\V4 as IPv4;

// Define a whitelist - IPs from this address Block are allowed in
$allowed_client_network = new IPv4\Block('192.168.0.0/24');

// Read the IP address of the current client into an Address instance
$client_address = new IPv4\Address($_SERVER['REMOTE_ADDR']);

// Check that the whitelisted address block contains the current client IP
if ($allowed_client_network->contains($client_address)) {
    // Client is on the whitelist, let them in
} else {
    // Client is NOT on the whitelist, deny access
}

use \JAAulde\IP\V4 as IPv4;

try {
    // The Address constructor will fail if first parameter is not in correct format, so
    // form validation is as simple as trying to create instances with the POSted data
    $first_address = new IPv4\Address($_POST['first_address']);
    $last_address = new IPv4\Address($_POST['last_address']);
    
    // The Range constructor will fail if the addresses are not properly ordered, so form validation
    // is as simple as trying to create an instance with the previously created Address instances
    $blacklisted_range = new IPv4\Range($first_address, $last_address);
} catch (Exception) {
    // Invalid data POSTed, take user back to form with error info
    exit();
}

$query = sprintf(
    'INSERT INTO `ip_range_blocks` (`first_address`, `last_address`) VALUES (%s, %s);',
    $blacklisted_range->getFirstAddress()->get(),
    $blacklisted_range->getLastAddress()->get()
);

use \JAAulde\IP\V4 as IPv4;

$client_address = new IPv4\Address($_SERVER['REMOTE_ADDR']);

$query = sprintf(
    'SELECT COUNT(*) FROM `ip_range_blocks` WHERE %s BETWEEN `first_address` AND `last_address`;',
    $client_address->get()
);

use \JAAulde\IP\V4 as IPv4;

// The same form validation note from the previous example still stands
$blacklisted_network_block = new IPv4\Block($_POST['address'], $_POST['mask']);

$query = sprintf(
    'INSERT INTO `ip_range_blocks` (`first_address`, `last_address`) VALUES (%s, %s);',
    $blacklisted_network_block->getNetworkAddress()->get(),
    $blacklisted_network_block->getBroadcastAddress()->get()
);

bash
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