Good day everyone! This tutorial is all about Identify Your Browser and Platform Used in PHP I’m gonna show you on how to Identify Your Browser and Platform Used in PHP
PHP has some useful environment variables which can be seen in the phpinfo.php page that was used to setup the PHP environment.
HTTP_USER_AGENT is one of the environment variables set by PHP. This identifies the user’s browser and operating system.
The PHP provides function called getenv() to access the values of all the environment variables. The information contained in the HTTP_USER_AGENT environment can be used to create dynamic content appropriate to the browser.
Below are the following codes which demonstrates how you can identify a client browser and operating system:
[php]<?php<?php $viewer = getenv("HTTP_USER_AGENT"); $browser = "An unidentified browser"; if (preg_match("/MSIE/i", "$viewer")) { $browser = "Internet Explorer"; } else if (preg_match("/Netscape/i", "$viewer")) { $browser = "Netscape"; } else if (preg_match("/Mozilla/i", "$viewer")) { $browser = "Mozilla"; } $platform = "An identified OS"; if (preg_match("/Windows/i", "$viewer")) { $platform = "Windows"; } else if (preg_match("/Linux/i", "$viewer")) { $platform = "Linux"; } echo "You are using $browser on $platform.";?>[/php]The codes above shows the output:
You are using Mozilla on Windows.
This result may be different for your computer, depending on what browser you are using.
That’s all.
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Frequently Asked Questions
How does this PHP project work?
Built with vanilla PHP (no framework) and MySQL backend. Standard structure: form HTML, PHP script handlers, MySQL via PDO or mysqli, sessions for auth, Bootstrap for responsive layout. Ready to extend for BSIT capstone scope.
What PHP and MySQL versions does this project require?
Most projects in this batch run on PHP 7.4 to PHP 8.2 with MySQL 5.7+ or MariaDB 10+. A few older projects need PHP 5.6 (deprecated, use XAMPP 7.x). To run: install XAMPP / WAMP / Laragon, extract project to htdocs, import the included .sql file via phpMyAdmin, edit the connection file (usually config.php or db_connect.php) with your DB credentials, browse to the project URL in your browser.
How do I set up the database for this PHP project?
Open phpMyAdmin (http://localhost/phpmyadmin/ on XAMPP), create a new empty database with the name specified in the project’s config.php. Click the Import tab, choose the included .sql file, click Go. Then edit config.php (or includes/connection.php) with: ‘localhost’, your MySQL username (usually ‘root’), your MySQL password (usually blank for XAMPP), and the database name.
Can I use this PHP project for a BSIT capstone or thesis?
Yes, but extend it. A bare CRUD app is too narrow for full capstone scope. Add: user roles via session checks, reports/dashboards (Chart.js + AJAX), PDF exports (TCPDF library), email notifications (PHPMailer), real domain extension (analytics, audit log, multi-branch support). Pair with Chapter 1-5 documentation matching your panel’s rubric.
Why am I getting ‘connection error’ or ‘undefined function mysqli_connect’?
Three common PHP issues: (1) Connection error: Apache + MySQL services not running in XAMPP control panel, OR database name in config.php does not match what you created in phpMyAdmin. (2) ‘undefined function mysqli_connect’: MySQL extension not enabled, in php.ini uncomment extension=mysqli (then restart Apache). (3) ‘No such file or directory’: MySQL socket path wrong, use 127.0.0.1 instead of localhost in the connection string.
Where can I find more PHP projects with source code?
Browse the PHP Projects hub for the full library (300+ vanilla PHP systems). For modern PHP MVC alternatives see Laravel Projects (74 systems) or CodeIgniter Projects (32 systems). For BSIT-focused capstone idea lists see 150 Best Capstone Project Ideas.