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How to Install CodeIgniter4
Codeigniter 4 is the lightweight framework of PHP with small footprints. There is not too much configuration required to run. It is not required to use the command line in Codeigniter.
Requirements:
- Php 7.2 (min)
- Extensions (*intl* extension,*mbstring* extension)
- Database – MySQL
- Localhost server (xampp, wamp, lamp)
Note: you can download any third-party application to create the localhost like xampp, wamp, lamp
Step 1. Download Codeigniter 4
Step 2. Extract the zip file in your localhost root directory.
Step 3. Open your project in your fav code editor. Here I have used VScode.
Project running successfully in chrome hit the URL http://localhost/C4/public/
Step 4. Now if you want to remove the public from the URL
- Copy the index.php and .htaccess file from the public folder and paste it outside the public folder.
- Open the index.php and change the below-given code
Replace the above line From below
- And press Ctrl+S to save the changes
- Now you can access the project without the public http://localhost/C4/
Step 5. Now create the below-given files in your project
- Home_cnt.php at path xampp\htdocs\C4\app\Controllers
- Blogs_mod.php at path xampp\htdocs\C4\app\Models
- AddBlog_view.php at path xampp\htdocs\C4\app\Views
- BlogsList_view.php at path xampp\htdocs\C4\app\Views
- EditBlog_view.php at path xampp\htdocs\C4\app\Views
Step 6. Configure the database into your project.
Open .env and setup the default database connectiondatabase.default.hostname = localhost
database.default.database = codeigniter4
database.default.username = root
database.default.password =
database.default.DBDriver = MySQLi
Read Also:- How To Install The Telescope In Laravel
Step 7. Setup the project env
Open .env and change the project environment
CI_ENVIRONMENT = development
Step 8. Add the given below code into respected files
Home_cnt.php
<?php namespace App\Controllers;
use App\Models\Blogs_mod;
class Home_cnt extends BaseController
{
//blog list
public function index(){
$post = new Blogs_mod();
$data[‘postList’] = $post->findAll();
return view(‘BlogsList_view’,$data);
}
//edit blog
public function edit($id){
$post = new Blogs_mod();
$title = $_POST[‘title’];
$description = $_POST[‘description’];
$data = [
‘blog_title’ => $title,
‘blog_description’ => $description
];
$session = session();
if($post->where(‘blog_id’, $id)->set($data)->update()){
$session->setFlashdata(‘success’, ‘Record Updated Success!’);
}else{
$session->setFlashdata(‘error’, ‘Failed!’);
}
return redirect(‘home’);
}
//delete blog
public function Delete($id){
$post = new Blogs_mod();
$session = session();
if($post->where(‘blog_id’,$id)->delete()){
$session->setFlashdata(‘success’, ‘Record Deleted Success!’);
}else{
$session->setFlashdata(‘error’, ‘Failed!’);
}
return redirect(‘home’);
}
//add blog
public function store(){
$post = new Blogs_mod();
$title = $_POST[‘title’];
$description = $_POST[‘description’];
$data =[
‘blog_title’ =>$title,
‘blog_description’ =>$description
];
$session = session();
if($post->insert($data)){
$session->setFlashdata(‘success’, ‘Record added Success!’);
}else{
$session->setFlashdata(‘error’, ‘Failed!’);
}
return redirect(‘home’);
}
//add blog ui
public function addNew(){
return view(‘AddBlog_view’);
}
public function update($id){
$post = new Blogs_mod();
$data[‘BlogDetails’] = $post->where(‘blog_id’,$id)->first();
return view(‘EditBlog_view.php’,$data);
}
}
Blogs_mod.php
<?php namespace App\Models;
use CodeIgniter\Model;
class Blogs_mod extends Model
{
protected $table = ‘blogs’;
protected $primaryKey = ‘blog_id’;
protected $returnType = ‘array’;
protected $useSoftDeletes = false;
protected $allowedFields = [‘blog_id’, ‘blog_title’,’blog_description’];
protected $useTimestamps = false;
protected $validationRules = [];
protected $validationMessages = [];
protected $skipValidation = true;
}
AddBlog_view.php
<main role=”main” class=”container” style=”margin-top:100px;”><div style=”margin:30px;text-align:right;”>
<a href=””><button type=”button” class=”btn btn-primary”>Add New</button></a>
</div>
<form action=”<?php echo base_url(‘/Home_cnt/store’) ?>” method=”post”>
<div class=”form-group row”>
<label for=”inputEmail3″ class=”col-sm-2 col-form-label”>Email</label>
<div class=”col-sm-10″>
<input type=”text” class=”form-control” id=”title” name=”title” placeholder=”Title”>
</div>
</div>
<div class=”form-group row”>
<label for=”inputPassword3″ class=”col-sm-2 col-form-label”>Description</label>
<div class=”col-sm-10″>
<textarea name=”description” class=”form-control” id=”” cols=”30″ rows=”10″>Description</textarea>
</div>
</div>
<div class=”form-group row”>
<label for=”inputPassword3″ class=”col-sm-2 col-form-label”></label>
<div class=”col-sm-10″>
<button type=”submit” class=”btn btn-primary”>Submit</button>
</div>
</div>
</form>
</main>
BlogsList_view
<main role=”main” class=”container” style=”margin-top:100px;”>
<?php
$session = session();
if($session->getFlashdata(‘success’)){
echo ‘<div class=”alert alert-success” role=”alert”>’.$session->getFlashdata(‘success’).'</div>’;
}elseif($session->getFlashdata(‘error’)){
echo ‘<div class=”alert alert-danger” role=”alert”>’.$session->getFlashdata(‘error’).'</div>’;
} ?>
<div style=”margin:30px;text-align:right;”>
<a href=”<?php echo base_url(‘/Home_cnt/addNew’); ?>”><button type=”button” class=”btn btn-primary”>Add New</button></a>
</div>
<table class=”table table-hover”>
<thead>
<tr>
<th scope=”col”>Title</th>
<th scope=”col”>Description</th>
<th scope=”col”>Edit</th>
<th scope=”col”>Delete</th>
</tr>
</thead>
<tbody>
<?php foreach($postList as $listData){?>
<tr>
<th scope=”row”><?php echo $listData[‘blog_title’];?></th>
<td><?php echo $listData[‘blog_description’];?></td>
<td><a href=”<?php echo base_url(‘/Home_cnt/update’).”/”.$listData[‘blog_id’];?>”><button type=”button” class=”btn btn-secondary”>Edit</button></a> </td>
<td><a href=”<?php echo base_url(‘/Home_cnt/Delete’).”/”.$listData[‘blog_id’];?>”><button type=”button” class=”btn btn-danger”>Delete</button></a></td>
</tr>
<?php } ?>
</tbody>
</table>
</main>
EditBlog_view
<main role=”main” class=”container” style=”margin-top:100px;”>
<div style=”margin:30px;text-align:right;”>
<a href=””><button type=”button” class=”btn btn-primary”>Add New</button></a>
</div>
<form action=”<?php echo base_url(‘/Home_cnt/edit’).”/”.$BlogDetails[‘blog_id’]; ?>” method=”post”>
<div class=”form-group row”>
<label for=”inputEmail3″ class=”col-sm-2 col-form-label”>Email</label>
<div class=”col-sm-10″>
<input type=”text” class=”form-control” id=”title” name=”title” placeholder=”Title” value=”<?php echo $BlogDetails[‘blog_title’]; ?>”>
</div>
</div>
<div class=”form-group row”>
<label for=”inputPassword3″ class=”col-sm-2 col-form-label”>Description</label>
<div class=”col-sm-10″>
<textarea name=”description” class=”form-control” id=”” cols=”30″ rows=”10″><?php echo $BlogDetails[‘blog_description’]; ?></textarea>
</div>
</div>
<div class=”form-group row”>
<label for=”inputPassword3″ class=”col-sm-2 col-form-label”></label>
<div class=”col-sm-10″>
<button type=”submit” class=”btn btn-primary”>Submit</button>
</div>
</div>
</form>
</main>
Step 9. Finally, you have to make changes in routes.php
Change the below
Add the new route in routes.php for Home_cnt controller
Comment out the old routes for the Home controller
Project Screenshots.
