How To Create Your Own Composer/Packagist Package

Here I start with the project folder name “helloworld”. Inside the project folder create “src” folder. I highly recommend create src folder because its easy to manage your code. Inside src folder, create another folder “HelloWorld”, and inside helloworld create class file like below: –
“sayhelloworld.php”.
Sayhelloworld.php file content should like

namespace HelloWorld;
class SayHelloWorld
{
public static function world()
{
return 'Hello World, Composer!';
}
}

Once you finished with above package steps, start below mention steps.

Start with Installation of composer in your project. After installation create composer.json file inside in your project root directory. Use terminal go to your project directory and follow bellow step.

After completion of above steps, check your project folder for composer.json file, it should be created into your folder. But before we use composer files, we need to do required changes.
{
"name": "sagar/helloworld",
"description": "This my first composer package",
"type": "library",
"authors": [
{
"name": "sagar patel",
"email": "patel.sagar1508@gmail.com"
}
],
"minimum-stability": "dev",
"require": {
“php”: “>=5.3.0”
},
“autoload”:{
“psr-0”:{
“HelloWorld”:”src/”
}
}
}

It requires dependency minimum version 5.3 and tells composer to autoload all files “HelloWorld” namespace inside “src” dir.

First, we need to make sure our composer file is working properly. For that Open terminal & go to your project directory to run a command “composer Install”. Once you are done with composer installation, it (composer) creates tests folder in your root project directory. Now create test file inside tests folder.

test.php file content should be
<?php

require_once __DIR__ . ‘/../vendor/autoload.php’;

use HelloWorld\SayHello;

echo SayHello::world();