header-and-footer-scripts-inserter.php

<?php
/**
 * Plugin Name: Head and Footer Scripts Inserter
 * Plugin URI: https://github.com/ArthurGareginyan/header-and-footer-scripts-inserter
 * Description: Easily and safely add your custom HTML code (plus JavaScript, CSS, etc.) to your WordPress website, directly out of the WordPress Admin Area, without the need to have an external editor.
 * Author: Space X-Chimp
 * Author URI: https://www.spacexchimp.com
 * Version: 4.52
 * License: GPL3
 * Text Domain: header-and-footer-scripts-inserter
 * Domain Path: /languages/
 *
 * Copyright 2016-2021 Space X-Chimp ( website : https://www.spacexchimp.com )
 *
 * This plugin is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This plugin is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this plugin. If not, see <http://www.gnu.org/licenses/>.
 *
 * ███████╗██████╗  █████╗  ██████╗███████╗    ██╗  ██╗      ██████╗██╗  ██╗██╗███╗   ███╗██████╗
 * ██╔════╝██╔══██╗██╔══██╗██╔════╝██╔════╝    ╚██╗██╔╝     ██╔════╝██║  ██║██║████╗ ████║██╔══██╗
 * ███████╗██████╔╝███████║██║     █████╗       ╚███╔╝█████╗██║     ███████║██║██╔████╔██║██████╔╝
 * ╚════██║██╔═══╝ ██╔══██║██║     ██╔══╝       ██╔██╗╚════╝██║     ██╔══██║██║██║╚██╔╝██║██╔═══╝
 * ███████║██║     ██║  ██║╚██████╗███████╗    ██╔╝ ██╗     ╚██████╗██║  ██║██║██║ ╚═╝ ██║██║
 * ╚══════╝╚═╝     ╚═╝  ╚═╝ ╚═════╝╚══════╝    ╚═╝  ╚═╝      ╚═════╝╚═╝  ╚═╝╚═╝╚═╝     ╚═╝╚═╝
 *
 */


/**
 * Prevent Direct Access
 */
defined( 'ABSPATH' ) or die( "Restricted access!" );

/**
 * Define global constants
 */
$plugin_data = get_file_data( __FILE__,
                              array(
                                     'name'    => 'Plugin Name',
                                     'version' => 'Version',
                                     'text'    => 'Text Domain'
                                   )
                            );
function spacexchimp_p006_define_constants( $constant_name, $value ) {
    $constant_name = 'SPACEXCHIMP_P006_' . $constant_name;
    if ( ! defined( $constant_name ) )
        define( $constant_name, $value );
}
spacexchimp_p006_define_constants( 'FILE', __FILE__ );
spacexchimp_p006_define_constants( 'DIR', dirname( plugin_basename( __FILE__ ) ) );
spacexchimp_p006_define_constants( 'BASE', plugin_basename( __FILE__ ) );
spacexchimp_p006_define_constants( 'URL', plugin_dir_url( __FILE__ ) );
spacexchimp_p006_define_constants( 'PATH', plugin_dir_path( __FILE__ ) );
spacexchimp_p006_define_constants( 'SLUG', dirname( plugin_basename( __FILE__ ) ) );
spacexchimp_p006_define_constants( 'NAME', $plugin_data['name'] );
spacexchimp_p006_define_constants( 'VERSION', $plugin_data['version'] );
spacexchimp_p006_define_constants( 'TEXT', $plugin_data['text'] );
spacexchimp_p006_define_constants( 'PREFIX', 'spacexchimp_p006' );
spacexchimp_p006_define_constants( 'SETTINGS', 'spacexchimp_p006' );

/**
 * A useful function that returns an array with the contents of the plugin constants
 */
function spacexchimp_p006_plugin() {
    $array = array(
        'file'     => SPACEXCHIMP_P006_FILE,
        'dir'      => SPACEXCHIMP_P006_DIR,
        'base'     => SPACEXCHIMP_P006_BASE,
        'url'      => SPACEXCHIMP_P006_URL,
        'path'     => SPACEXCHIMP_P006_PATH,
        'slug'     => SPACEXCHIMP_P006_SLUG,
        'name'     => SPACEXCHIMP_P006_NAME,
        'version'  => SPACEXCHIMP_P006_VERSION,
        'text'     => SPACEXCHIMP_P006_TEXT,
        'prefix'   => SPACEXCHIMP_P006_PREFIX,
        'settings' => SPACEXCHIMP_P006_SETTINGS
    );
    return $array;
}

/**
 * Put value of plugin constants into an array for easier access
 */
$plugin = spacexchimp_p006_plugin();

/**
 * Load the plugin modules
 */
require_once( $plugin['path'] . 'inc/php/core.php' );
require_once( $plugin['path'] . 'inc/php/options.php' );
require_once( $plugin['path'] . 'inc/php/upgrade.php' );
require_once( $plugin['path'] . 'inc/php/versioning.php' );
require_once( $plugin['path'] . 'inc/php/enqueue.php' );
require_once( $plugin['path'] . 'inc/php/functional.php' );
require_once( $plugin['path'] . 'inc/php/controls.php' );
require_once( $plugin['path'] . 'inc/php/page.php' );
require_once( $plugin['path'] . 'inc/php/messages.php' );