Features of PHP

• Server-side: code runs on the server, never the browser.
• Embedded in HTML: drop <?php ?> tags inside any .php file.
• Loosely typed by default, strictly typed when you opt in (declare(strict_types=1);).
• Cross-platform: same code on Linux, Windows, macOS.
• Database-first: native drivers for MySQL, PostgreSQL, SQLite, MongoDB.
• OOP: classes, interfaces, traits, abstract classes, namespaces.
• Huge standard library: 5000+ built-in functions for strings, arrays, files, dates, regex, crypto.
• Composer: world-class package manager + 350,000+ libraries on Packagist.
• Easy deployment: every shared host on Earth speaks PHP.
• Free + open source under the PHP License.

text
Browser  →  Apache/Nginx  →  PHP-FPM  →  MySQL
                              ↓
                          Your code