php - Class not found (composer.json) - php

Question

I'm trying to implement a PHP Library for detecting CMS I found on github, but I can't for the life of me figure it out.
I am new to php and composer, but I installed composer in my directory, then updated the json as instructed, but it cannot find the classes, despite them all being in the directory.
running this code
include(__DIR__ . "/vendor/autoload.php");
$domain = "http://google.com";
$cms = new DetectCMS($domain);
if($cms->getResult()) {
echo "Detected CMS: ".$cms->getResult();
} else {
echo "CMS couldn't be detected";
}
gives me this error
PHP Fatal error: Uncaught Error: Class 'DetectCMS' not found in D:\Projects\Scraper\ccc.php:12
Stack trace:
#0 {main}
thrown in D:\Projects\Scraper\ccc.php on line 12
here is my file structure:
would anyone have any idea what I'm doing wrong with this information?
Thanks in advance

Answer 1

I think to include a class using the autoloader,in your class, you must do something about it:
in your composer.json
"autoload": {
"psr-4" :{"DetectCMS": "DetectCMS"}
}
after in your class DetectCMS.php:
<?php
use DetectCMS\DetectCMS;
or
<?php
$loader = require 'vendor/autoload.php';
$loader->add('DetectCMS', __DIR__.'DetectCMS');