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PHP vs Ruby on Rails

PHP logo

PHP

Web Development

A popular general-purpose scripting language that is especially suited to web development

From
Free
Rated
-
Ruby on Rails logo

Ruby on Rails

Web Development

A full-stack framework for building web applications

From
Free
Rated
-

The short version

  • Each has a real cost: PHP distributed under the Modified BSD License, also called the PHP License version 4, per php.net/license/; there is no paid tier or vendor price to compare; Ruby on Rails licensed under the MIT License per rubyonrails.org; as open source software it has no paid tier or vendor price to compare
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which PHP and Ruby on Rails actually diverge.

Attributes where PHP and Ruby on Rails differ
AttributePHPRuby on Rails

Identical on both: starting price (Free), pricing model (open-source), free tier (Yes), platforms (Web), user rating (Not yet rated), category (Web Development).

What people use each for

The jobs each tool is most often brought in to do.

PHP

  • Server-side web developmentnot Ruby on Rails
  • Content management systemsnot Ruby on Rails
  • API backendsnot Ruby on Rails

Ruby on Rails

  • Building e-commerce platforms that scale from startup to IPOnot PHP
  • Developing SaaS applications with consistent conventions across teamsnot PHP
  • Creating marketplace platforms like Airbnb with transactional workflowsnot PHP
  • Integrating cloud file storage and real-time WebSocket updatesnot PHP
  • Enforcing encryption and security protections against common attacksnot PHP

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

PHP

  • Distributed under the Modified BSD License, also called the PHP License version 4, per php.net/license/; there is no paid tier or vendor price to compare
  • PHP 8.2 lost active support on 31 Dec 2024 and enters full end of life on 31 Dec 2026, with only security fixes since, per php.net/supported-versions.php (Aug 2026)

Ruby on Rails

  • Licensed under the MIT License per rubyonrails.org; as open source software it has no paid tier or vendor price to compare
  • The framework is Ruby-only by design, per rubyonrails.org's own description of its convention over configuration approach, requiring the Ruby runtime rather than supporting alternate languages

Pricing, plan by plan

PHP

Free

No published plan breakdown. See the PHP review.

Ruby on Rails

Free

No published plan breakdown. See the Ruby on Rails review.

Which should you pick?

Choose PHP if

  • You want to start without paying.

Choose Ruby on Rails if

  • You want to start without paying.

Questions people ask

Is PHP or Ruby on Rails better?
Neither clearly leads. PHP starts at Free and Ruby on Rails at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, PHP or Ruby on Rails?
PHP starts at Free and Ruby on Rails at Free.
Does PHP or Ruby on Rails run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use PHP for free?
Both have a free tier, so you can try either at no cost before committing.
What is PHP best used for?
PHP is most often used for server-side web development, content management systems, api backends. Of those, server-side web development and content management systems are not what Ruby on Rails is typically brought in for.

Answered from the vendors’ own pages

PHP: Is PHP free to use?

Yes, PHP is completely free and open-source software under the PHP Foundation governance. There are no licensing fees or paid tiers.

Source
Ruby on Rails: Is Ruby on Rails free?

Yes, Ruby on Rails is free and open-source, licensed under the MIT License. There are no costs associated with using or distributing the framework.

Source
PHP: Does the PHP Foundation offer paid support?

The PHP Foundation accepts voluntary donations to support long-term development, but donations are optional and not required to use PHP.

Source
Ruby on Rails: What is Ruby on Rails licensed under?

Ruby on Rails is licensed under the MIT License, a permissive open-source license that allows commercial and private use.

Source
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