<?php 
//Main PHP file of the plugin
 
//Load or create the needed variables
global $wpdb; 
$pluginurl = parse_url(plugin_dir_url(__FILE__))['path'];
$plugindir =plugin_dir_url( dirname( __FILE__ ) );
$tablename = $wpdb->prefix.'shortcode_plugin_template';
 
//Execute the backend
//Here you can handle all database connections, calculations and processing of requests
include 'backend/counter.php';
 
//Output the frontend
//Here you can define the HTML code that will be output in the shortcode
include 'frontend/counter.php';
?>