Getting visitor information

Getting information about your visitors is interesting and sometimes useful for generating statistics, especially when you have a high traffic.

With PHP it’s easy to get your visitor’s IP, browser and operating system information, the page that referred him, the URL he visited and the time when he did it.
For this we use the following predefined variables:

- gets the visitor's IP

Ex.: (localhost IP)

- the visitor's browser and operating system information.

Ex.: Mozilla/4.0 (compatible; MSIE 6.0; Windows 98)
Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; Crazy Browser 1.0.5; .NET CLR)
Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)
Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)
Mozilla/4.0 (compatible; MSIE 6.0; Windows 98; Hotbar
Googlebot/2.1 (+ - it means that Google crawls your website.

Mozilla/4.0 (compatible; MSIE 6.0... - this means the browser is Internet Explorer 6.0
Windows NT 5.1;... - this means the operating system is Microsoft Windows XP
Hotbar - this is a browser extension (add-on)

- the visitor's operating system language.

Ex.: en, fr, hr, zh

You can find information about language codes at


the URL that referred the visitor to the current address.


If the referer is internal (a page in your website, the referer will appear as in the second example. This way you can track your visitors closely.

- the current URL the visitor has in its browser.

Ex.: /soft_artcls_list.php

/ – means the root, the main page (index.php, index.html, default.asp…), for example

This is the code you’ll insert in your header that is probably included in all your pages.

mysql_query("insert into stats(vis_ip, vis_agent, vis_lang, vis_ref, vis_time, vis_url, vis_author, vis_country) values('".$_SERVER['REMOTE_ADDR']."', '".$_SERVER['HTTP_USER_AGENT']."', '".$_SERVER['HTTP_ACCEPT_LANGUAGE']."', '".$_SERVER['HTTP_REFERER']."', NOW(), '".$_SERVER['REQUEST_URI']."')");

And this is the query for the database:

CREATE TABLE `stats` (
  `id_stat` bigint(5) NOT NULL auto_increment,
  `vis_ip` varchar(15) NOT NULL default '',
  `vis_agent` varchar(80) NOT NULL default '',
  `vis_lang` char(2) NOT NULL default '',
  `vis_ref` varchar(192) NOT NULL default '',
  `vis_time` datetime NOT NULL default '0000-00-00 00:00:00',
  `vis_url` varchar(96) NOT NULL default '',
  PRIMARY KEY  (`id_stat`)

For more information, perhaps the visitor’s country you need an IP2Country database. This will probably pe covered in another tutorial 😉

Nathan Pakovskie is an esteemed senior developer and educator in the tech community, best known for his contributions to With a passion for coding and a knack for simplifying complex tech concepts, Nathan has authored several popular tutorials on C# programming, ranging from basic operations to advanced coding techniques. His articles, often characterized by clarity and precision, serve as invaluable resources for both novice and experienced programmers. Beyond his technical expertise, Nathan is an advocate for continuous learning and enjoys exploring emerging technologies in AI and software development. When he’s not coding or writing, Nathan engages in mentoring upcoming developers, emphasizing the importance of both technical skills and creative problem-solving in the ever-evolving world of technology. Specialties: C# Programming, Technical Writing, Software Development, AI Technologies, Educational Outreach

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