Home
>
Web Development
>
Track Your Visitors, Using PHP

Track Your Visitors, Using PHP

There are many different traffic analysis tools, ranging from simple counters to complete traffic analyzers. Although there are some free ones, most of them come with a price tag. Why not do it yourself? With PHP, you can easily create a log file within minutes. In this article I will show you how!

Getting the information

The most important part is getting the information from your visitor. Thankfully, this is extremely easy to do in PHP (or any other scripting language for that matter). PHP has a special global variable called $_SERVER which contains several environment variables, including information about your visitor. To get all the information you want, simply use the following code:

// Getting the information

$ipaddress = $_SERVER['REMOTE_ADDR'];

$page = "http://{$_SERVER['HTTP_HOST']}{$_SERVER['PHP_SELF']}";

$page .= iif(!empty($_SERVER['QUERY_STRING']), "?{$_SERVER['QUERY_STRING']}", "");

$referrer = $_SERVER['HTTP_REFERER'];

$datetime = mktime();

$useragent = $_SERVER['HTTP_USER_AGENT'];

$remotehost = @getHostByAddr($ipaddress);

As you can see the majority of information comes from the $_SERVER variable. The mktime() (http://nl2.php.net/mktime) and getHostByAddr() (http://nl2.php.net/mktime) functions are used to get additional information about the visitor.

Note: I used a function in the above example called iif(). You can get this function at http://nl2.php.net/mktime.

Logging the information

Now that you have all the information you need, it must be written to a log file so you can later look at it, and create useful graphs and charts. To do this you need a few simple PHP function, like fopen (http://nl2.php.net/mktime) and fwrite (http://nl2.php.net/mktime).

The below code will first create a complete line out of all the information. Then it will open the log file in "Append" mode, and if it doesn't exist yet, create it.

If no errors have occurred, it will write the new logline to the log file, at the bottom, and finally close the log file again.

// Create log line

// Write to log file:

$logfile = '/some/path/to/your/logfile.txt';

// Open the log file in "Append" mode

if (!$handle = fopen($logfile, 'a+')) {

die("Failed to open log file");

}

// Write $logline to our logfile.

if (fwrite($handle, $logline) === FALSE) {

die("Failed to write to log file");

}

fclose($handle);

Now you've got a fully function logging module. To start tracking visitors on your website simply include the logging module into your pages with the include() function (http://nl2.php.net/mktime):

include ('log.php');

Okay, now I want to view my log file

After a while you'll probably want to view your log file. You can easily do so by simply using a standard text editor (like Notepad on Windows) to open the log file, but this is far from desired, because it's in a hard-to-read format.

Let's use PHP to generate useful overviews for is. The first thing that needs to be done is get the contents from the log file in a variable, like so:

// Open log file

$logfile = "/some/path/to/your/logfile.txt";

if (file_exists($logfile)) {

$handle = fopen($logfile, "r");

$log = fread($handle, filesize($logfile));

fclose($handle);

} else {

die ("The log file doesn't exist!");

}

Now that the log file is in a variable, it's best if each logline is in a separate variable. We can do this using the explode() function (http://nl2.php.net/mktime), like so:

// Seperate each logline

$log = explode(" ", trim($log));

After that it may be useful to get each part of each logline in a separate variable. This can be done by looping through each logline, and using explode again:

// Seperate each part in each logline

for ($i = 0; $i < count($log); $i++) {

$log[$i] = trim($log[$i]);

$log[$i] = explode('|', $log[$i]);

}

Now the complete log file has been parsed, and we're ready to start generating some interesting stuff.

The first thing that is very easy to do is getting the number of pageviews. Simply use count() (http://nl2.php.net/mktime) on the $log array, and there you have it;

echo count($log) . " people have visited this website.";

You can also generate a complete overview of your log file, using a simple foreach loop and tables. For example:

// Show a table of the logfile

echo '';

echo 'IP Address';

echo 'Referrer';

echo 'Date';

echo 'Useragent';

echo 'Remote Host';

foreach ($log as $logline) {

echo '';

echo '' . $logline['0'] . '';

echo '' . urldecode($logline['1']) . '';

echo '' . date('d/m/Y', $logline['2']) . '';

echo '' . $logline['3'] . '';

echo '' . $logline['4'] . '';

echo '';

}

echo '';

You can also use custom functions to filter out search engines and crawlers. Or create graphs using PHP/SWF Charts (http://nl2.php.net/mktime). The possibilities are endless, and you can do all kinds of things!

In Conclusion...

In this article I have shown you have to create a logging module for your own PHP website, using nothing more than PHP and its built-in functions. To view the log file you need to parse it using PHP, and then display it in whatever way you like. It is up to you to create a kick-ass traffic analyzer.

If you still prefer to use a pre-built traffic analyzer, have a look at http://nl2.php.net/mktime.

About The Author

Dennis Pallett is a young tech writer, with much experience in ASP, PHP and other web technologies. He enjoys writing, and has written several articles and tutorials. To find more of his work, look at his websites at http://nl2.php.net/mktime, http://nl2.php.net/mktime and http://nl2.php.net/mktime.

Airbnb cleaning service Glenview ..

In The News:

Apple releases emergency patches for two zero-day vulnerabilities actively exploited in attacks. iPhone and iPad users urged to update immediately.

DoorDash launches Zesty, an AI-powered social app that recommends restaurants through conversational search, now testing in San Francisco and New York.

Cybersecurity firm Infoblox reveals that over 90 percent of parked domains now redirect visitors to scams and malware, making simple typos extremely dangerous.

The Fox News AI Newsletter covers the latest artificial intelligence technology advancements, including the challenges and opportunities AI presents now and for the future.

GPT-5.2 is now live for all ChatGPT users with improved coding, writing and image interpretation, with Kurt Knutsson offering his review.

New iPhone replacement scam uses pressure tactics and fake carrier calls to steal devices from buyers. Criminals claim shipping errors and demand urgent returns.

Amazon Ring's new facial recognition feature sparks privacy controversy as Electronic Frontier Foundation critics argue the AI upgrade expands surveillance risks.

New Android banking trojan Sturnus steals credentials, reads encrypted messages and controls devices.

Denmark's 3D-printed student village proves automation builds 36 apartments faster than traditional methods. Skovsporet project shows housing future.

Discover Android's new Sound Notifications feature that alerts you to smoke alarms, doorbells, and baby cries even when wearing headphones.

New SantaStealer malware reportedly threatens holiday shoppers with password theft. This Christmas-themed info-stealer targets browsers and crypto wallets.

The Christmas season brings a surge in Netflix phishing scams targeting shoppers with fake emails. Stacey P received convincing scam but verified account first.

San Francisco Giants invite Jamie Grohsong to throw ceremonial first pitch at Oracle Park after he learned to play baseball with a bionic hand following an injury.

FBI warns cybercriminals are stealing family photos from social media to create fake proof of life images in virtual kidnapping scams targeting victims.

Instagram's new 'Your Algorithm' tool lets you control your Reels feed in real time. The app now gives you power to customize what videos you see.

Major Marquis fintech breach exposes 400,000-plus Americans' data through unpatched SonicWall vulnerability, with Texas hardest hit at 354,000 affected.

Free up iPhone storage fast by clearing large photos and videos from Messages app. Simple steps for iOS users to delete attachments without losing chats.

Scammers are flooding inboxes with fake tracking alerts that mimic real carriers, exploiting the holiday rush to steal logins and personal data.

The Fox News AI Newsletter brings you the latest news on AI technology advancements and the challenges and opportunities AI presents now and for the future.

Texas family reunites with missing 11-year-old cat Grayson after 103 days using Petco Love Lost's AI photo matching technology and community help.

Tired of AI customer service loops? These insider tricks help you escape "frustration AI" and get real human help when you need it most for urgent issues.

Unlock richer audio from your streaming apps with simple tweaks to volume normalization, equalizer settings, and quality preferences for cleaner sound.

Scammers are sending fake Facebook settlement payout emails that mimic legitimate notices from the privacy settlement administrator to deceive users.

Holiday shopping scams surge as fake refund emails target distracted consumers during Black Friday and holiday seasons, costing Americans billions annually.

The AI-powered IRMO M1 exoskeleton features four modes, including turbo, eco, training and rest for hiking, running, cycling and sports with eight-hour battery life.

Track Your Visitors, Using PHP

Web Development