Codeigniter 4 Watermark Image Example

Codeigniter 4 image watermarking example. In this tutorial guide, you will learn how to add text watermarking on the image in the CodeIgniter 4 application with the help of the CodeIgniter’s default image manipulation class.

This tutorial will show you step-by-step on how to upload image similarly to create image watermarking functionality to add digital signature on the image using the image manipulation class.

Codeigniter 4 Image Text Overlay Watermarking Example

Follow the following steps and you can easily add text overlay watermark on images in codeigniter 4 apps:

  • Step 1 – Download Codeigniter Latest
  • Step 2 – Basic Configurations
  • Step 3 – Create Database With Table
  • Step 4 – Setup Database Credentials
  • Step 5 – Create Controller
  • Step 6 – Create Views
  • Step 7 – Add Routes
  • Step 8 – Start Development server

Step 1 – Download Codeigniter Project

In this step, you will download the latest version of Codeigniter 4, Go to this link https://codeigniter.com/download Download Codeigniter 4 fresh new setup and unzip the setup in your local system xampp/htdocs/ . And change the download folder name “demo”

Step 2 – Basic Configurations

Next, you will set some basic configuration on the app/config/app.php file, so let’s go to application/config/config.php and open this file on text editor.

Set Base URL like this

public $baseURL = 'http://localhost:8080';
To
public $baseURL = 'http://localhost/demo/';

Step 3 – Create Database With Table

In this step, you need to create a database name demo, so open PHPMyAdmin and create the database with the name demo. After successfully create a database, you can use the below SQL query for creating a crop_images table in your database.

CREATE TABLE files( id int(11) NOT NULL AUTO_INCREMENT COMMENT 'Primary Key', name varchar(100) NOT NULL COMMENT 'Name', type varchar(255) NOT NULL COMMENT 'File Type', created_at varchar(20) NOT NULL COMMENT 'Created date', PRIMARY KEY (id) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 COMMENT='demo table' AUTO_INCREMENT=1;

Step 4 – Setup Database Credentials

In this step, you need to connect our project to the database. So, visit app/Config/Database.php and open database.php file in text editor. After opening the file in a text editor, YOU need to set up database credentials in this file like below.

	public $default = [ 'DSN' => '', 'hostname' => 'localhost', 'username' => 'root', 'password' => '', 'database' => 'demo', 'DBDriver' => 'MySQLi', 'DBPrefix' => '', 'pConnect' => false, 'DBDebug' => (ENVIRONMENT !== 'production'), 'cacheOn' => false, 'cacheDir' => '', 'charset' => 'utf8', 'DBCollat' => 'utf8_general_ci', 'swapPre' => '', 'encrypt' => false, 'compress' => false, 'strictOn' => false, 'failover' => [], 'port' => 3306, ];

Step 5 – Create Controller

In this step, Go to app/Controllers and create a controller name ImageUploadController.php. Then add the following code into it:

<?php namespace App\Controllers; use CodeIgniter\Controller; class ImageUploadController extends Controller { public function index() { return view('imageUploadForm'); } public function upload() { helper(['form', 'url']); // access database $database = \Config\Database::connect(); $db = $database->table('files'); // file validation $isValidFile = $this->validate([ 'file' => [ 'uploaded[file]', 'mime_in[file,image/jpg,image/jpeg,image/png,image/gif]', 'max_size[file,4096]', ] ]); // check validation if (!$isValidFile) { print_r('Upload valid file upto 4mb size'); } else { $imgPath = $this->request->getFile('file'); // Image manipulation $image = \Config\Services::image() ->withFile($imgPath) ->text('Copyright Tutsmake.com @2021', [ 'color' => '#fff', 'opacity' => 0.7, 'withShadow' => true, 'hAlign' => 'center', 'vAlign' => 'bottom', 'fontSize' => 20 ]) ->save(FCPATH .'/images/'. $imgPath->getRandomName()); $imgPath->move(WRITEPATH . 'uploads'); $fileData = [ 'name' => $imgPath->getName(), 'type' => $imgPath->getClientMimeType() ]; $store = $db->insert($fileData); print_r('File uploaded successfully.'); } } } ?>

Step 6 – Create Views

In this step, you need to create imageUploadForm.php, go to application/views/ directory and create imageUploadForm.php file. and update the following HTML into your files:

<!DOCTYPE html>
<html> <head> <title>Codeigniter Adding Overlays Watermarks on Images Example - Tutsmake.com</title> <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css">
</head> <body> <div class="container mt-5" style="max-width: 500px"> <h2 class="mb-4 text-center">Codeigniter 4 Image Upload with Text Watermark Example</h2> <form method='post' action='<?php echo base_url(); ?>/ImageUploadController/upload' enctype='multipart/form-data'> <div class="form-group"> <label for="formFileLg" class="form-label">Select image :</label> <input class="form-control form-control-lg" type="file" name="file"> </div> <div class="d-grid mt-3"> <input type="submit" value="Upload" class="btn btn-outline-primary" /> </div> </form> </div> </body> </html>

Step 7 – Add Routes

In this step, visit app/Config/ directory and open Routes.php file. Then define in the routes in this file, as shown below:

/* * -------------------------------------------------------------------- * Route Definitions * --------------------------------------------------------------------
*/ $routes->setDefaultController('ImageUploadController'); $routes->get('/', 'ImageUploadController::index');

Step 8 – Start Development server

For start development server, open your terminal and execute the following command it:

php spark serve

Then, Go to the browser and hit below the URL:

http://localhost:8080

Conclusion

Codeigniter 4 image watermarking example. In this tutorial guide, you have learned how to add text watermarking on the image in the CodeIgniter 4 application with the help of the CodeIgniter’s default image manipulation class.

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