storeengine / includes / autoload.php

autoload.php in StoreEngine — Complete eCommerce Solution with Memberships, Licensing, Affiliates & More 2.2.0, at includes/autoload.php

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1	<?php
2
3	namespace StoreEngine;
4
5	if ( ! defined( 'ABSPATH' ) ) {
6	exit; // Exit if accessed directly.
7	}
8
9	class Autoload {
10
11	/**
12	* Instance
13	*
14	* @access private
15	* @var ?Autoload Class Instance.
16	*/
17	private static ?Autoload $instance = null;
18
19	/**
20	* Autoload directories for different namespaces.
21	*
22	* @var array
23	*/
24	private array $autoload_directories = [
25	'StoreEngine' => STOREENGINE_ROOT_DIR_PATH . 'includes/',
26	'StoreEngine\Payment\Gateways' => STOREENGINE_INCLUDES_DIR_PATH . 'payment-gateways/',
27	];
28
29	/**
30	* Initiator
31	*/
32	public static function get_instance(): Autoload {
33	if ( ! isset( self::$instance ) ) {
34	self::$instance = new self();
35	}
36
37	return self::$instance;
38	}
39
40	/**
41	* Register autoload directories for namespaces.
42	*
43	* @param string $namespace Namespace to autoload.
44	* @param string $directory Directory path for the namespace.
45	*/
46	public function add_namespace_directory( string $namespace, string $directory ) {
47	$this->autoload_directories[ $namespace ] = trailingslashit( $directory );
48	}
49
50	/**
51	* Autoload classes.
52	*
53	* @param string $class Class name.
54	*/
55	public function autoload( string $class ) {
56	foreach ( $this->autoload_directories as $namespace => $directory ) {
57	if ( 0 === strpos( $class, $namespace ) ) {
58	$class_to_load = $class;
59	$filename = strtolower(
60	preg_replace(
61	[ '/^' . preg_quote( $namespace, '\\\/' ) . '\\\/', '/([a-z])([A-Z])/', '/_/', '/\\\/' ],
62	[ '', '$1-$2', '-', DIRECTORY_SEPARATOR ],
63	$class_to_load
64	)
65	);
66
67	$file = $directory . $filename . '.php';
68
69	if ( strpos( $file, 'includes/addons/' ) !== false ) {
70	$file = str_replace( 'includes/addons/', 'addons/', $file );
71	}
72
73	// If the file is readable, include it.
74	if ( is_readable( $file ) ) {
75	require_once $file;
76	}
77	}
78	}
79	}
80
81	/**
82	* Constructor
83	*/
84	protected function __construct() {
85	spl_autoload_register( [ $this, 'autoload' ] );
86	}
87
88	/**
89	* Cloning is forbidden.
90	*/
91	public function __clone() {
92	_doing_it_wrong( __FUNCTION__, esc_html__( 'Cloning is forbidden.', 'storeengine' ), '1.3.3' );
93	}
94
95	/**
96	* Unserializing instances of this class is forbidden.
97	*/
98	public function __wakeup() {
99	_doing_it_wrong( __FUNCTION__, esc_html__( 'Unserializing instances of this class is forbidden.', 'storeengine' ), '1.3.3' );
100	}
101	}
102
103	Autoload::get_instance();
104