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<?php
namespace Wpsec\captcha\utils;
class IPUtil {
/**
* Returns all relevant client IP headers to Manged WordPress platform
*
* @return array Client IP headers
* @since 1.0.0
*
*/
public static function get_client_ip_headers() {
$ip_addresses = array();
$lookup_headers = array(
'HTTP_X_SUCURI_CLIENTIP',
'HTTP_X_CLIENT_IP',
'HTTP_X_FORWARDED_FOR',
'HTTP_X_REAL_IP',
'REMOTE_ADDR',
);
foreach ( $lookup_headers as $lookup_header ) {
if ( isset( $_SERVER[ $lookup_header ] ) ) {
$ip_addresses[ $lookup_header ] = $_SERVER[ $lookup_header ];
}
}
return $ip_addresses;
}
}