Пример print_r $_SERVER на PHP

Массив $_SERVER:

Array
(
    [UNIQUE_ID] => YApuCHJ6jDF0Cg-K1ZVy6HAAAMU
    [REMOTE_USER] => 
    [HTTPS] => on
    [SSL_TLS_SNI] => test.ru
    [HTTP_HOST] => test.ru
    [HTTP_USER_AGENT] => Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:83.0) Gecko/20100101 Firefox/83.0
    [HTTP_ACCEPT] => text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
    [HTTP_ACCEPT_LANGUAGE] => en-US,en;q=0.5
    [HTTP_ACCEPT_ENCODING] => gzip, deflate, br
    [HTTP_CONNECTION] => keep-alive
    [HTTP_REFERER] => https://test.ru/disweb/catalog/
    [HTTP_COOKIE] => _ga=GA1.2.788031338.0000000000; _ym_uid=0000000000833019874; _ym_d=0000000000; __unam=c9c1be2-000000000-00000000-732; _fbp=fb.1.1585723744087.000000000; fpestid=Er-gdregergergrewg-B-greger654654ygrtgh; _gid=GA1.2.00000000.00000000; PHPSESSION=0000fgu09760ovg7vg; _gat=1; _gat_gtag_UA_90000000_1=1; _ym_isad=2; _ym_visorc=w
    [HTTP_UPGRADE_INSECURE_REQUESTS] => 1
    [PATH] => /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin
    [SERVER_SIGNATURE] => 
    [SERVER_SOFTWARE] => Apache/2.4.37 (centos) OpenSSL/1.1.1c PHP/7.3.24
    [SERVER_NAME] => test.ru
    [SERVER_ADDR] => 67.56.211.201
    [SERVER_PORT] => 443
    [REMOTE_ADDR] => 80.219.61.12
    [DOCUMENT_ROOT] => /home/test.ru/www
    [REQUEST_SCHEME] => https
    [CONTEXT_PREFIX] => 
    [CONTEXT_DOCUMENT_ROOT] => /home/test.ru/www
    [SERVER_ADMIN] => info@test.ru
    [SCRIPT_FILENAME] => /home/test.ru/www/catalog/index.php
    [REMOTE_PORT] => 56682
    [GATEWAY_INTERFACE] => CGI/1.1
    [SERVER_PROTOCOL] => HTTP/1.1
    [REQUEST_METHOD] => GET
    [QUERY_STRING] => sort=name&order=asc
    [REQUEST_URI] => /catalog/dobavki-dlja-gipsa/?sort=name&order=asc
    [SCRIPT_NAME] => /catalog/index.php
    [PHP_SELF] => /catalog/index.php
    [REQUEST_TIME_FLOAT] => 1611266264.2298
    [REQUEST_TIME] => 1611266264
)