Добрый день всем!

У меня на VDS стоит nginx 1.18.0

Проблема в том, что я хочу настроить передачу заголовков Last Modified через PHP

header ("Last-Modified: " . date("D, d M Y H:i:s", time()) . " GMT");    

Но через PHP не работает, а nginx получается через директиву

add_header Last-Modified $date_gmt;

Но дело в том, что многие страницы у меня на сайте не обновляются месяцами, для них я хочу оставить статичный Last Modified

Код конфиг файла прилагаю. Заранее благодарю за помощь!

server {
        server_name site.ru www.site.ru;
        charset UTF-8;
        index index.php index.html;
        disable_symlinks if_not_owner from=$root_path;
        include /etc/nginx/vhosts-includes/*.conf;
        include /etc/nginx/vhosts-resources/site.ru/*.conf;
        access_log /var/www/httpd-logs/site.ru.access.log;
        error_log /var/www/httpd-logs/site.ru.error.log notice;
        set $root_path /var/www/site/data/site.ru;
        ssi_last_modified on;
  if_modified_since before;     
        
        root $root_path;
        gzip on;
        gzip_comp_level 5;
        gzip_disable "msie6";
        gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript application/javascript image/svg+xml;
        
        
if ($host ~* www\.(.*)) {
                  set $host_without_www $1;
                  rewrite ^(.*)$ http://$host_without_www$1 permanent;
}
 
        
        
location / {    
        try_files $uri $uri/ /index.php?q=$request_uri;
  if (!-e $request_filename) {
     rewrite ^(.*)$ /index.php;
  }
location ~ [^/]\.ph(p\d*|tml)$ {
                        try_files /does_not_exists @php;
}
                
 
                location ~* ^.+\.(jpg|jpeg|gif|png|svg|js|css|mp3|ogg|mpe?g|avi|zip|gz|bz2?|rar|swf|webp|woff|woff2)$ {
                        expires 365d;
                add_header Cache-Control no-store;
                etag on;
                if_modified_since before;
                }
        }
        location @php {
                fastcgi_index index.php;
                fastcgi_param PHP_ADMIN_VALUE "sendmail_path = /usr/sbin/sendmail -t -i -f info@site.ru";
                fastcgi_pass unix:/var/www/php-fpm/3.sock;
                fastcgi_split_path_info ^((?U).+\.ph(?:p\d*|tml))(/?.+)$;
                try_files $uri =404;
                include fastcgi_params;
                include /etc/nginx/vhosts-resources/site.ru/dynamic/*.conf;
                fastcgi_param PHP_ADMIN_VALUE "sendmail_path = /usr/sbin/sendmail -t -i -f info@site.ru";
                if_modified_since before;
                 etag on;
              
            
             
        }
        return 301 https://$host:443$request_uri;
        listen 11.11.11.11:80;
}
server {
        server_name site.ru www.site.ru;
        ssl_certificate "/var/www/httpd-cert/site/site.ru_le1.crtca";
        ssl_certificate_key "/var/www/httpd-cert/site/site.ru_le1.key";
        ssl_ciphers EECDH:+AES256:-3DES:RSA+AES:!NULL:!RC4;
        ssl_prefer_server_ciphers on;
        ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;
        ssl_dhparam /etc/ssl/certs/dhparam4096.pem;
        charset UTF-8;
        
        index index.php index.html;
        disable_symlinks if_not_owner from=$root_path;
        include /etc/nginx/vhosts-includes/*.conf;
        include /etc/nginx/vhosts-resources/site.ru/*.conf;
        access_log /var/www/httpd-logs/site.ru.access.log;
        error_log /var/www/httpd-logs/site.ru.error.log notice;
        set $root_path /var/www/site/data/site.ru;
        root $root_path;
        gzip on;
        gzip_comp_level 5;
        gzip_disable "msie6";
        gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript application/javascript image/svg+xml;
        ssi_last_modified on;
  if_modified_since before;
        
        
        if ($host ~* www\.(.*)) {
                  set $host_without_www $1;
                  rewrite ^(.*)$ http://$host_without_www$1 permanent;
}
         
        
        
        location / {
        if_modified_since before;
        try_files $uri $uri/ /index.php?q=$request_uri;
  if (!-e $request_filename) {
                rewrite ^(.*)$ /index.php;
                }
        
        location ~ /\.user\.ini {
        deny all;
        return 403;
    }
    location ~* /protect345/(adm|code|data|lang)/ {
        deny all;
        return 403;
    }
        
                location ~ [^/]\.ph(p\d*|tml)$ {
                        try_files /does_not_exists @php;
                }
                 
                location ~* ^.+\.(jpg|jpeg|gif|png|svg|js|css|mp3|ogg|mpe?g|avi|zip|gz|bz2?|rar|swf|webp|woff|woff2)$ {
                        if_modified_since before;
                  add_header Cache-Control no-store;
                        expires 365d;
                }
        }
        location @php {
                fastcgi_index index.php;
                fastcgi_param PHP_ADMIN_VALUE "sendmail_path = /usr/sbin/sendmail -t -i -f info@site.ru";
                fastcgi_pass unix:/var/www/php-fpm/3.sock;
                fastcgi_split_path_info ^((?U).+\.ph(?:p\d*|tml))(/?.+)$;
                try_files $uri =404;
                include fastcgi_params;
                include /etc/nginx/vhosts-resources/site.ru/dynamic/*.conf;
        
                if_modified_since before;          
          etag on;
             
             
        }
        listen 11.11.11.11:443 ssl;
}