Companies That Use PHP

PHP is a popular server-side scripting language that powers a significant portion of the web. Known for its simplicity, flexibility and large ecosystem, PHP remains a go-to choice for building dynamic websites, APIs and enterprise-grade web applications.

Why Do Top Companies Choose PHP?

Before diving into the list, here are a few reasons why PHP still plays a key role in modern web development:

• Rapid Development: Simple syntax and vast libraries make building web apps fast.
• Large Ecosystem: Frameworks like Laravel, Symfony and CodeIgniter boost productivity.
• Cross-Platform: Runs on all major OS and integrates easily with Apache, Nginx and MySQL.
• Scalability: Powers high-traffic platforms like Facebook (in its early days) and WordPress.com.
• Open Source & Cost-Effective: Free to use, with massive community support.
• Content Management Power: Core language behind WordPress, Drupal and Joomla.

Top Companies That Use PHP

1. Facebook (Meta) (originally built in PHP, now using HHVM for optimization)

• Popular Uses: Web platform backend, API endpoints.
• Why PHP? Easy to iterate quickly during rapid growth phases.

2. Wikipedia

• Popular Uses: MediaWiki backend, content management.
• Why PHP? Flexibility and strong community support for a massive open knowledge platform.

3. Slack (parts of its backend services)

• Popular Uses: Web messaging components, internal tools.
• Why PHP? Fast development and easy integration with existing systems.

4. Etsy

• Popular Uses: E-commerce backend, product listing management.
• Why PHP? Easy templating and scalability for millions of products.

5. Tumblr

• Popular Uses: Blog hosting, content feeds, dashboard rendering.
• Why PHP? Strong support for dynamic content and user-generated media.

6. Mailchimp

• Popular Uses: Marketing automation backend, campaign analytics tools.
• Why PHP? Quick feature deployment and seamless database connectivity.

7. WordPress.com

• Popular Uses: WordPress CMS hosting, plugin ecosystem.
• Why PHP? Native language for WordPress and unbeatable ecosystem support.

8. Flickr

• Popular Uses: Image hosting backend, photo search algorithms.
• Why PHP? Lightweight code for high-traffic image serving.

9. Zoom (parts of its web platform)

• Popular Uses: Account management portal, web integrations.
• Why PHP? Fast web interface creation and maintenance.

10. Yahoo! (legacy systems still in PHP)

• Popular Uses: Web content portals, news pages, email frontend.
• Why PHP? Stable and easy-to-maintain codebase for large-scale portals.

Tools and Frameworks Popular Among These Companies

• Frameworks: Laravel, Symfony, CodeIgniter, Zend Framework
• CMS Platforms: WordPress, Drupal, Joomla
• Testing: PHPUnit, Codeception, Behat
• Databases: MySQL, MariaDB, PostgreSQL
• Caching & Optimization: Redis, Memcached, Varnish
• Security: PHP Security Audit, Suhosin Patch