What are the implications of blocking or excluding certain IP addresses, such as those associated with Google, in a PHP forum?

Blocking or excluding certain IP addresses, such as those associated with Google, in a PHP forum can potentially prevent legitimate users from accessing the forum and affect search engine indexing. It is important to carefully consider the implications and potential consequences before implementing such restrictions. 

// Example code snippet to exclude Google's IP addresses
$allowed_ips = array('192.168.1.1', '192.168.1.2', '192.168.1.3');
$client_ip = $_SERVER['REMOTE_ADDR'];

if (!in_array($client_ip, $allowed_ips)) {
    // Redirect or display an error message
    header('Location: error_page.php');
    exit();
}

Keywords

IP blocking exclusion Google PHP forum implications

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