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Tailwind CSS Symfony (PHP) - Flowbite

Learn how to install Flowbite with Symfony and Tailwind CSS to use a free and open-source PHP web application framework developed by SensioLabs SAS

Symfony is one of the definitive web application frameworks in the PHP ecosystem offering over 50 standalone PHP components and an MVC framework for your web application that you can use to build complex applications, website pages and even API services.

The Symfony PHP framework was first launched as an open-source software back in 2005 by SensioLabs SAS and it is currently used by numerous companies and frameworks including Laravel, Spotify, BlaBlaCar, Trivago, Dailymotion and more.

Follow the steps from this guide to learn how to create a new Symfony project on your local computer, install and configure the Tailwind CSS framework, and finally install Flowbite and leverage the open-source UI components to build websites even faster.

Requirements #

Make sure that before you get started you have both PHP (v8.1 or higher), Composer and Node.js installed on your local environment so that Symfony, Tailwind CSS and Flowbite can be properly set up and configured.

Create a Symfony project #

The most straightforward approach for creating a new Symfony project is to use the official Symfony CLI installer which you can easily install on macOS and Linux devices using Homebrew:

brew install symfony-cli/tap/symfony-cli

For devices running on Windows you can also install the Symfony CLI using Scoop:

scoop install symfony-cli

Now that you have the CLI available you can proceed by creating a new project.

  1. Create a new Symfony project by running the following command inside your terminal:
symfony new --webapp my_application

This command will create a new folder with a fresh Symfony project installation inside.

  1. Change the current working directory to the newly created project folder:
cd my_application
  1. Install the recommended Symfony Webpack Encore bundle to enable front-end integration via Composer:
composer require symfony/webpack-encore-bundle
  1. Run the following command in your terminal to start a local web server:
symfony server:start

This command will make the web application accessible via the browser on http://localhost:8000.

To deploy your application on a server we recommend you to check out the official production deployment tools and bundlers that Symfony provides out-of-the-box, such as Deployer, Ansistrano, or Fabric.

Now that you have a working Symfony application on your local computer we can proceed with installing and setting up Tailwind CSS.

Install Tailwind CSS #

Tailwind CSS is a popular and open-source utility-first CSS framework that allows you to code styles directly inside your HTML based on preconfigured classes that will speed up your UI front-end development.

  1. Run the following command to require and install Tailwind CSS and PostCSS via NPM:
npm install --save-dev tailwindcss postcss autoprefixer postcss-loader
  1. Generate the Tailwind CSS configuration files by running the following command:
npx tailwindcss init -p

This will create two new tailwind.config.js and postcss.config.js configuration files.

  1. Update the template paths to indicate where Tailwind CSS utility classes will be used:
// tailwind.config.js
module.exports = {
  content: [
    "./assets/**/*.js",
    "./templates/**/*.html.twig",
  ],
  theme: {
    extend: {},
  },
  plugins: [],
}
  1. Import the base Tailwind directives inside the default ./assets/styles/app.css file:
@tailwind base;
@tailwind components;
@tailwind utilities;
  1. Enable the PostCSS loader plugin by adding it to the Webpack config file:
// webpack.config.js
Encore
    // other plugins

    .enablePostCssLoader()

    // ... more plugins
  1. Run the following command to compile the front-end assets via Webpack:
npm run watch
  1. Let’s create a new homepage entry file by configuring the Symfony routes file:
// ./config/routes.yml

index:
    path: /
    controller: App\Controller\DefaultController::index
  1. Create a new DefaultController and set up the path for a new Twig template file:
<?php
// ./src/Controller/DefaultController.php

namespace App\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;

class DefaultController extends AbstractController
{
    /**
     * @return \Symfony\Component\HttpFoundation\Response
     */
    public function index()
    {
        return $this->render('index.html.twig', []);
    }
}
  1. Create a new index.html.twig inside the templates folder and add a couple of header and hero sections from the Flowbite Blocks collection:
{% extends 'base.html.twig' %}

{% block body %}
    <header>
        <nav class="bg-white border-gray-200 px-4 lg:px-6 py-2.5 dark:bg-gray-800">
            <div class="flex flex-wrap items-center justify-between max-w-screen-xl mx-auto">
                <a href="https://flowbite.com" class="flex items-center">
                    <img src="https://flowbite.com/docs/images/logo.svg" class="h-6 mr-3 sm:h-9" alt="Flowbite Logo" />
                    <span class="self-center text-xl font-semibold whitespace-nowrap dark:text-white">Flowbite</span>
                </a>
                <div class="flex items-center lg:order-2">
                    <a href="#" class="text-gray-800 dark:text-white hover:bg-gray-50 focus:ring-4 focus:ring-gray-300 font-medium rounded-lg text-sm px-4 lg:px-5 py-2 lg:py-2.5 mr-2 dark:hover:bg-gray-700 focus:outline-none dark:focus:ring-gray-800">Log in</a>
                    <a href="#" class="text-white bg-blue-700 hover:bg-blue-800 focus:ring-4 focus:ring-blue-300 font-medium rounded-lg text-sm px-4 lg:px-5 py-2 lg:py-2.5 mr-2 dark:bg-blue-600 dark:hover:bg-blue-700 focus:outline-none dark:focus:ring-blue-800">Get started</a>
                    <button data-collapse-toggle="mobile-menu-2" type="button" class="inline-flex items-center p-2 ml-1 text-sm text-gray-500 rounded-lg lg:hidden hover:bg-gray-100 focus:outline-none focus:ring-2 focus:ring-gray-200 dark:text-gray-400 dark:hover:bg-gray-700 dark:focus:ring-gray-600" aria-controls="mobile-menu-2" aria-expanded="false">
                        <span class="sr-only">Open main menu</span>
                        <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M3 5a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1zM3 10a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1zM3 15a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1z" clip-rule="evenodd"></path></svg>
                        <svg class="hidden w-6 h-6" fill="currentColor" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M4.293 4.293a1 1 0 011.414 0L10 8.586l4.293-4.293a1 1 0 111.414 1.414L11.414 10l4.293 4.293a1 1 0 01-1.414 1.414L10 11.414l-4.293 4.293a1 1 0 01-1.414-1.414L8.586 10 4.293 5.707a1 1 0 010-1.414z" clip-rule="evenodd"></path></svg>
                    </button>
                </div>
                <div class="items-center justify-between hidden w-full lg:flex lg:w-auto lg:order-1" id="mobile-menu-2">
                    <ul class="flex flex-col mt-4 font-medium lg:flex-row lg:space-x-8 lg:mt-0">
                        <li>
                            <a href="#" class="block py-2 pl-3 pr-4 text-white bg-blue-700 rounded lg:bg-transparent lg:text-blue-700 lg:p-0 dark:text-white" aria-current="page">Home</a>
                        </li>
                        <li>
                            <a href="#" class="block py-2 pl-3 pr-4 text-gray-700 border-b border-gray-100 hover:bg-gray-50 lg:hover:bg-transparent lg:border-0 lg:hover:text-blue-700 lg:p-0 dark:text-gray-400 lg:dark:hover:text-white dark:hover:bg-gray-700 dark:hover:text-white lg:dark:hover:bg-transparent dark:border-gray-700">Company</a>
                        </li>
                        <li>
                            <a href="#" class="block py-2 pl-3 pr-4 text-gray-700 border-b border-gray-100 hover:bg-gray-50 lg:hover:bg-transparent lg:border-0 lg:hover:text-blue-700 lg:p-0 dark:text-gray-400 lg:dark:hover:text-white dark:hover:bg-gray-700 dark:hover:text-white lg:dark:hover:bg-transparent dark:border-gray-700">Marketplace</a>
                        </li>
                        <li>
                            <a href="#" class="block py-2 pl-3 pr-4 text-gray-700 border-b border-gray-100 hover:bg-gray-50 lg:hover:bg-transparent lg:border-0 lg:hover:text-blue-700 lg:p-0 dark:text-gray-400 lg:dark:hover:text-white dark:hover:bg-gray-700 dark:hover:text-white lg:dark:hover:bg-transparent dark:border-gray-700">Features</a>
                        </li>
                        <li>
                            <a href="#" class="block py-2 pl-3 pr-4 text-gray-700 border-b border-gray-100 hover:bg-gray-50 lg:hover:bg-transparent lg:border-0 lg:hover:text-blue-700 lg:p-0 dark:text-gray-400 lg:dark:hover:text-white dark:hover:bg-gray-700 dark:hover:text-white lg:dark:hover:bg-transparent dark:border-gray-700">Team</a>
                        </li>
                        <li>
                            <a href="#" class="block py-2 pl-3 pr-4 text-gray-700 border-b border-gray-100 hover:bg-gray-50 lg:hover:bg-transparent lg:border-0 lg:hover:text-blue-700 lg:p-0 dark:text-gray-400 lg:dark:hover:text-white dark:hover:bg-gray-700 dark:hover:text-white lg:dark:hover:bg-transparent dark:border-gray-700">Contact</a>
                        </li>
                    </ul>
                </div>
            </div>
        </nav>
    </header>
    <section class="bg-white dark:bg-gray-900">
        <div class="max-w-screen-xl px-4 py-8 mx-auto text-center lg:py-16 lg:px-12">
            <a href="#" class="inline-flex items-center justify-between px-1 py-1 pr-4 text-sm text-gray-700 bg-gray-100 rounded-full mb-7 dark:bg-gray-800 dark:text-white hover:bg-gray-200 dark:hover:bg-gray-700" role="alert">
                <span class="text-xs bg-blue-600 rounded-full text-white px-4 py-1.5 mr-3">New</span> <span class="text-sm font-medium">Flowbite is out! See what's new</span> 
                <svg class="w-5 h-5 ml-2" fill="currentColor" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M7.293 14.707a1 1 0 010-1.414L10.586 10 7.293 6.707a1 1 0 011.414-1.414l4 4a1 1 0 010 1.414l-4 4a1 1 0 01-1.414 0z" clip-rule="evenodd"></path></svg>
            </a>
            <h1 class="mb-4 text-4xl font-extrabold leading-none tracking-tight text-gray-900 md:text-5xl lg:text-6xl dark:text-white">We invest in the world’s potential</h1>
            <p class="mb-8 text-lg font-normal text-gray-500 lg:text-xl sm:px-16 xl:px-48 dark:text-gray-400">Here at Flowbite we focus on markets where technology, innovation, and capital can unlock long-term value and drive economic growth.</p>
            <div class="flex flex-col mb-8 space-y-4 lg:mb-16 sm:flex-row sm:justify-center sm:space-y-0 sm:space-x-4">
                <a href="#" class="inline-flex items-center justify-center px-5 py-3 text-base font-medium text-center text-white bg-blue-700 rounded-lg hover:bg-blue-800 focus:ring-4 focus:ring-blue-300 dark:focus:ring-blue-900">
                    Learn more
                    <svg class="w-5 h-5 ml-2 -mr-1" fill="currentColor" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M10.293 3.293a1 1 0 011.414 0l6 6a1 1 0 010 1.414l-6 6a1 1 0 01-1.414-1.414L14.586 11H3a1 1 0 110-2h11.586l-4.293-4.293a1 1 0 010-1.414z" clip-rule="evenodd"></path></svg>
                </a>
                <a href="#" class="inline-flex items-center justify-center px-5 py-3 text-base font-medium text-center text-gray-900 border border-gray-300 rounded-lg hover:bg-gray-100 focus:ring-4 focus:ring-gray-100 dark:text-white dark:border-gray-700 dark:hover:bg-gray-700 dark:focus:ring-gray-800">
                    <svg class="w-5 h-5 mr-2 -ml-1" fill="currentColor" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M2 6a2 2 0 012-2h6a2 2 0 012 2v8a2 2 0 01-2 2H4a2 2 0 01-2-2V6zM14.553 7.106A1 1 0 0014 8v4a1 1 0 00.553.894l2 1A1 1 0 0018 13V7a1 1 0 00-1.447-.894l-2 1z"></path></svg>
                    Watch video
                </a>  
            </div>
            <div class="px-4 mx-auto text-center md:max-w-screen-md lg:max-w-screen-lg lg:px-36">
                <span class="font-semibold text-gray-400 uppercase">FEATURED IN</span>
                <div class="flex flex-wrap items-center justify-center mt-8 text-gray-500 sm:justify-between">
                    <a href="#" class="mb-5 mr-5 lg:mb-0 hover:text-gray-800 dark:hover:text-gray-400">
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                </div>
            </div> 
        </div>
    </section>
{% endblock %}

A brand new header and hero section should now be visible on the homepage of your Symfony application’s local development server supporting Tailwind CSS. Let’s now proceed by installing Flowbite to enable interactive UI components.

Install Flowbite #

Flowbite is a free and popular open-source UI component library built on top of the utility-classes from Tailwind CSS featuring interactive UI elements such as dropdowns, navbars, modals and also an ecosystem of website sections, templates, plugins, tools, and more that you can leverage to build websites even faster.

  1. Install the Flowbite package via NPM in your terminal:
npm install flowbite
  1. Require the Flowbite plugin and set up the template paths inside the configuration file:
// tailwind.config.js
module.exports = {
  content: [
    "./assets/**/*.js",
    "./templates/**/*.html.twig",
    "./node_modules/flowbite/**/*.js" // set up the path to the flowbite package
  ],
  theme: {
    extend: {},
  },
  plugins: [
    require('flowbite/plugin') // add the flowbite plugin
  ],
}

Inside the ./assets/app.js file you can import the Flowbite package to enable interactivity of the UI components:

/*
 * Welcome to your app's main JavaScript file!
 *
 * We recommend including the built version of this JavaScript file
 * (and its CSS file) in your base layout (base.html.twig).
 */

// any CSS you import will output into a single css file (app.css in this case)
import './styles/app.css';

// start the Stimulus application
import './bootstrap';

// enable the interactive UI components from Flowbite
import 'flowbite';

This will enable all of the interactive and dynamic UI components such as the dropdowns, modals, navbars, and others to work out of the box. Webpack will automatically bundle the final JavaScript file which improves speed and performance.

Check out the Flowbite Quickstart guide to learn about the different ways you can set up the JS interactivity whether that’s via CDN, using the data attributes interface, leveraging TypeScript or programmatically working with the UI components and object classes.

Symfony UX Turbo #

Flowbite provides custom event listeners for turbo load support if you import the flowbite.turbo.js file. Check out the following guides to learn more how to integrate the JavasScript file that powers the interactive components with Webpack Encore.

If you use Symfony UX Turbo, you will need to import a version of Flowbite which supports the turbo:load event listeners instead of load. To do this add the lines below to your ./assets/app.js file:

/*
 * Welcome to your app's main JavaScript file!
 *
 * We recommend including the built version of this JavaScript file
 * (and its CSS file) in your base layout (base.html.twig).
 */

// any CSS you import will output into a single css file (app.css in this case)
import './styles/app.css';

// start the Stimulus application
import './bootstrap';

// enable the interactive UI components from Flowbite with Turbo
import 'flowbite/dist/flowbite.turbo.js';

Flowbite components #

Now that you have all of the technologies successfully set up in your Symfony project you can finally start building websites quickly and efficiently leveraging both the utility classes from Tailwind CSS, the pre-built UI components from Flowbite and the framework structure from Symfony.

Let’s start by adding a simple modal authentication component from the Flowbite Library when clicking on the login button from the header:

<button type="button" data-modal-target="authentication-modal" data-modal-toggle="authentication-modal" class="text-gray-800 dark:text-white hover:bg-gray-50 focus:ring-4 focus:ring-gray-300 font-medium rounded-lg text-sm px-4 lg:px-5 py-2 lg:py-2.5 mr-2 dark:hover:bg-gray-700 focus:outline-none dark:focus:ring-gray-800">Log in</button>

<div id="authentication-modal" tabindex="-1" aria-hidden="true" class="fixed top-0 left-0 right-0 z-50 hidden w-full p-4 overflow-x-hidden overflow-y-auto md:inset-0 h-[calc(100%-1rem)] max-h-full">
    <div class="relative w-full max-w-md max-h-full">
        <!-- Modal content -->
        <div class="relative bg-white rounded-lg shadow dark:bg-gray-700">
            <button type="button" class="absolute top-3 right-2.5 text-gray-400 bg-transparent hover:bg-gray-200 hover:text-gray-900 rounded-lg text-sm p-1.5 ml-auto inline-flex items-center dark:hover:bg-gray-800 dark:hover:text-white" data-modal-hide="authentication-modal">
                <svg aria-hidden="true" class="w-5 h-5" fill="currentColor" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M4.293 4.293a1 1 0 011.414 0L10 8.586l4.293-4.293a1 1 0 111.414 1.414L11.414 10l4.293 4.293a1 1 0 01-1.414 1.414L10 11.414l-4.293 4.293a1 1 0 01-1.414-1.414L8.586 10 4.293 5.707a1 1 0 010-1.414z" clip-rule="evenodd"></path></svg>
                <span class="sr-only">Close modal</span>
            </button>
            <div class="px-6 py-6 lg:px-8">
                <h3 class="mb-4 text-xl font-medium text-gray-900 dark:text-white">Sign in to our platform</h3>
                <form class="space-y-6" action="#">
                    <div>
                        <label for="email" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">Your email</label>
                        <input type="email" name="email" id="email" class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-600 dark:border-gray-500 dark:placeholder-gray-400 dark:text-white" placeholder="name@company.com" required />
                    </div>
                    <div>
                        <label for="password" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">Your password</label>
                        <input type="password" name="password" id="password" placeholder="••••••••" class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-600 dark:border-gray-500 dark:placeholder-gray-400 dark:text-white" required />
                    </div>
                    <div class="flex justify-between">
                        <div class="flex items-start">
                            <div class="flex items-center h-5">
                                <input id="remember" type="checkbox" value="" class="w-4 h-4 border border-gray-300 rounded bg-gray-50 focus:ring-3 focus:ring-blue-300 dark:bg-gray-600 dark:border-gray-500 dark:focus:ring-blue-600 dark:ring-offset-gray-800 dark:focus:ring-offset-gray-800" required />
                            </div>
                            <label for="remember" class="ml-2 text-sm font-medium text-gray-900 dark:text-gray-300">Remember me</label>
                        </div>
                        <a href="#" class="text-sm text-blue-700 hover:underline dark:text-blue-500">Lost Password?</a>
                    </div>
                    <button type="submit" class="w-full text-white bg-blue-700 hover:bg-blue-800 focus:ring-4 focus:outline-none focus:ring-blue-300 font-medium rounded-lg text-sm px-5 py-2.5 text-center dark:bg-blue-600 dark:hover:bg-blue-700 dark:focus:ring-blue-800">Login to your account</button>
                    <div class="text-sm font-medium text-gray-500 dark:text-gray-300">
                        Not registered? <a href="#" class="text-blue-700 hover:underline dark:text-blue-500">Create account</a>
                    </div>
                </form>
            </div>
        </div>
    </div>
</div>

After setting up the data-modal-target="{modalId}" and data-modal-toggle="{modalId}" data attributes for the button component and copy-pasting the modal example, clicking on the login button will now show a modal element with a user sign-in form that you can use to authenticate users directly from your homepage.

You can check out the full collection of UI components by visiting Flowbite Blocks and Flowbite Library.

Flowbite Bundle #

An unofficial Flowbite Bundle is available, providing an integrated form theme for Symfony as well as specific form types.

Symfony starter project #

The awesome open-source community from Flowbite created a Symfony and Tailwind CSS starter project that you can use to skip this integration guide and use it as starting point for your future Symfony, Tailwind CSS and Flowbite projects.