Codeigniter 4 Image Crop and Resize Before Save using jQuery Croppie Tutorial

jQuery Croppie js is a lightweight javascript library that allows users to crop and resize image on form views before uploading to server.

Codeigniter 4 Crop & Save Image using jQuery Croppie Example Tutorial

Here are steps to crop, resize images before upload to server using jquery croppie js with ajax in PHP:

Step 1: Download Codeigniter Project
Step 2: Basic Configurations
Step 3: Create a Database With Table
Step 4: Setup Database Credentials
Step 5: Create a Controller
Step 6: Create a View
Step 7: Start the Development server

Step 1: Download Codeigniter Project

In this step, we 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

Open app/config/app.php file, and add the following line into it:

Set Base URL like this

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

Step 3: Create a Database With Table

To create table in the database, use the below SQL query for that:

CREATE TABLE crop_images (
    id int(11) NOT NULL AUTO_INCREMENT COMMENT 'Primary Key',
    title varchar(100) NOT NULL COMMENT 'Title',
    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

Open app/Config/Database.php and setup database details like the following:

	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 a Controller

Visit app/Controllers folder and create a controller name CropImageUpload.php file into it. And then create some methods into it to display crop images before uploading form and validate the image before uplaod.

<?php namespace App\Controllers;
use CodeIgniter\Controller;
class CropImageUpload extends Controller
{
    public function index()
    {    
         return view('crop-image-upload-form');
    }
    public function store()
    {  
	       helper(['form', 'url']);
        
	       $db    = \Config\Database::connect();
         $builder = $db->table('crop_images');
         $data = $_POST["image"];
         $image_array_1 = explode(";", $data);
         $image_array_2 = explode(",", $image_array_1[1]);
         $data = base64_decode($image_array_2[1]);
         $imageName = time() . '.png';
         file_put_contents($imageName, $data);
         $image_file = addslashes(file_get_contents($imageName));
         $save = $builder->insert(['title' =>  $image_file]);
         $response = [
          'success' => true,
          'data' => $save,
          'msg' => "Crop Image has been uploaded successfully in codeigniter"
         ];
    
       return $this->response->setJSON($response);
    }
}

Step 6: Create a View

Create crop-image-upload-form.php file in application/views/ folder and add the following code into it:

<html>  
    <head>  
        <title>jQuery Croppie Image Upload Crop Codeigniter 4</title>  
  
    </head>  
    <body>  
    <div class="container mt-5">
     <div class="card">
      <div class="card-header">
        jQuery Crop and Resize Image Before Upload in PHP Codeigniter 4  
      </div>
      <div class="card-body">
       <input type="file" name="before_crop_image" id="before_crop_image" accept="image/*" />
       </div>
    </div>
    </div>
    </body>  
</html>
<div id="imageModel" class="modal fade bd-example-modal-lg" role="dialog">
 <div class="modal-dialog modal-lg">
  <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal">×</button>
        <h4 class="modal-title">Crop & Resize Upload Image in PHP with Ajax</h4>
      </div>
      <div class="modal-body">
        <div class="row">
          <div class="col-md-8 text-center">
            <div id="image_demo" style="width:350px; margin-top:30px"></div>
          </div>
          <div class="col-md-4" style="padding-top:30px;">
        <br />
        <br />
        <br/>
            <button class="btn btn-success crop_image">Save</button>
          </div>
        </div>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
      </div>
    </div>
  </div>
</div>
</script>

Add the following jQuery croppie plugin libaray in crop-image-upload-form.php file:

<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js"></script
>
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/umd/popper.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/croppie/2.6.5/croppie.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/croppie/2.6.5/croppie.css" />

Then, add this below code into crop-image-upload-form.php file to crop image before upload on boostrap model in codeigniter:

$image_crop = $('#image_demo').croppie({
    enableExif: true,
    viewport: {
      width:200,
      height:200,
      type:'square' //circle
    },
    boundary:{
      width:300,
      height:300
    }    
  });
  $('#before_crop_image').on('change', function(){
    var reader = new FileReader();
    reader.onload = function (event) {
      $image_crop.croppie('bind', {
        url: event.target.result
      }).then(function(){
        console.log('jQuery bind complete');
      });
    }
    reader.readAsDataURL(this.files[0]);
    $('#imageModel').modal('show');
  });

Also, add this below ajax code in crop-image-upload-form.php for upload crop image into controller file in codeigniter 4 projects:

$('.crop_image').click(function(event){
    $image_crop.croppie('result', {
      type: 'canvas',
      size: 'viewport'
    }).then(function(response){
      $.ajax({
        url:"<?php echo base_url(); ?>public/index.php/CropImageUpload/store",  
        type:'POST',
        data:{"image":response},
        success:function(data){
          $('#imageModel').modal('hide');
          alert('Crop image has been uploaded');
        }
      })
    });
  });

Step 7: Start Development server

To start the development server, Go to the browser and hit below the URL.

http://localhost/demo/public/index.php/crop-image-upload

Conclusion

That’s all; In this tutorial, You have learned how to crop and resize image before upload in CodeIgniter 4 projects using jQuery croppie with ajax with preview.

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