PHP to Ruby on Rails

Free PHP to Ruby on Rails Code Converter

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Transform your code from PHP to Ruby on Rails with our free AI-based code convertion tool. If you like what you see, we also create documentation for your code! We don't ever store your code or any representation of it in our databases, but it will be shared with the LLM of our choice for processing.

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How to convert from PHP to Ruby on Rails


Transitioning from PHP to Ruby on Rails (RoR) can seem daunting, especially if you are proficient in PHP but new to Ruby on Rails. This guide will take you through the step-by-step process of converting your PHP code into Ruby on Rails, helping you understand the core differences and how to make the most of RoR's advantages.

Understanding the Core Differences

Before diving into the code conversion, you need to understand the key differences between PHP and Ruby on Rails frameworks:

  • Syntax: Ruby is known for its elegant and readable syntax, which can be quite different from PHP's more verbose style.
  • MVC Architecture: RoR strictly follows the MVC (Model-View-Controller) architecture, while PHP can be more flexible in this regard.
  • Conventions Over Configuration: RoR makes use of conventions to reduce the number of decisions developers need to make, which is different from PHP's more flexible configuration options.

Setting Up Your Ruby on Rails Environment

To start converting your PHP code to Ruby on Rails, you first need to set up a Rails development environment. Here are the basic steps:

  1. Install Ruby: Download and install Ruby from the official website.
  2. Install Rails: Run gem install rails to install Rails.
  3. Create a New Rails Project: Use rails new projectname to create a new Rails project.

Mapping PHP Constructs to Ruby on Rails

PHP: Basic Syntax to Ruby

Here's a side-by-side comparison of basic syntax between PHP and Ruby:

// PHP
$variable = "Hello, World";
echo $variable;
# Ruby
variable = "Hello, World"
puts variable

PHP: Arrays to Ruby

Arrays in PHP and Ruby have different syntax and behaviors:

// PHP
$array = array('one', 'two', 'three');
echo $array[0];  // outputs "one"
# Ruby
array = ['one', 'two', 'three']
puts array[0]  # outputs "one"

Converting PHP Functions to Ruby on Rails Methods

PHP functions need to be translated into RoR methods. For example, consider a PHP function that fetches user data:

// PHP
function getUserData($id) {
    // Database query to get user data
    $query = "SELECT * FROM users WHERE id = $id";
    // Execute query and fetch data
    return $data;

In Ruby on Rails, you would create a similar functionality within a model:

# Ruby on Rails
class User < ApplicationRecord
  def self.get_user_data(id)
    where(id: id).first

Database Migrations and Models

Ruby on Rails uses migrations to handle database schema changes. Here is how you transition from PHP's database handling to RoR's ActiveRecord:

PHP: Creating a Table

// PHP
$query = "CREATE TABLE users (
    name VARCHAR(100),
    email VARCHAR(100)

Ruby on Rails: Creating a Table

# Create a migration file using Rails generator
rails generate migration CreateUsers name:string email:string

# Edit the migration file
class CreateUsers < ActiveRecord::Migration[6.0]
  def change
    create_table :users do |t|
      t.string :name
      t.string :email

# Run the migration
rails db:migrate

Controllers and Routing Conversion

PHP typically handles routing via files and switch statements. In Rails, this is managed by a dedicated router and controllers.

PHP: Basic Routing

// PHP
$request = $_SERVER['REQUEST_URI'];
switch ($request) {
    case '/':
        require 'home.php';
    case '/about':
        require 'about.php';
        require '404.php';

Ruby on Rails: Routing

# config/routes.rb
Rails.application.routes.draw do
  root 'home#index'
  get 'about', to: 'pages#about'

Views and Templates

In PHP, you may use plain HTML mixed with PHP code, whereas RoR uses Embedded Ruby (ERB) templates.

PHP: Basic View

// home.php
<!DOCTYPE html>
    <h1><?php echo $title; ?></h1>

Ruby on Rails: Basic View

<!-- app/views/home/index.html.erb -->
<!DOCTYPE html>
    <h1><%= @title %></h1>


Converting your project from PHP to Ruby on Rails involves more than just syntax changes; it requires a shift in thinking towards RoR's conventions and structures. This guide provides a foundational understanding to help you get started with transitioning your PHP codebase to a robust and efficient Ruby on Rails application.

Remember, the key to a successful migration is to understand the core principles of Ruby on Rails and leverage its powerful tools and abstractions to create a clean and maintainable codebase.

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Frequently Asked Questions

This free AI tool does its best to generate professional documentation. However, it's missing some context from other related files. The paid version takes into account different files to generate documentation for each use case, apart from the documentation of every file. You have also the possibility of add custom concepts to improve the knowledge of your codebase.

No. You don't have to enter any personal information to use Codex's free code documentation tool — it's 100% free.

No. An encrypted version of your code is stored only while its being processed and it's deleted immediately.

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