contextual-related-posts / contextual-related-posts.php

contextual-related-posts.php in Contextual Related Posts trunk, at contextual-related-posts.php

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1	<?php
2	/**
3	* Contextual Related Posts.
4	*
5	* Contextual Related Posts is the best related posts plugin for WordPress that
6	* allows you to display a list of related posts on your website and in your feed.
7	*
8	* @package Contextual_Related_Posts
9	* @author Ajay D'Souza
10	* @license GPL-2.0+
11	* @link https://webberzone.com
12	* @copyright 2009-2026 Ajay D'Souza
13	*
14	* @wordpress-plugin
15	* Plugin Name: Contextual Related Posts
16	* Plugin URI: https://webberzone.com/plugins/contextual-related-posts/
17	* Description: Display related posts on your website or in your feed. Increase reader retention and reduce bounce rates.
18	* Version: 4.4.1
19	* Author: WebberZone
20	* Author URI: https://webberzone.com
21	* License: GPL-2.0+
22	* License URI: http://www.gnu.org/licenses/gpl-2.0.txt
23	* Text Domain: contextual-related-posts
24	* Domain Path: /languages
25	*/
26
27	namespace WebberZone\Contextual_Related_Posts;
28
29	if ( ! defined( 'WPINC' ) ) {
30	die;
31	}
32
33	/**
34	* Holds the version of Contextual Related Posts.
35	*
36	* @since 2.9.3
37	*/
38	if ( ! defined( 'WZ_CRP_VERSION' ) ) {
39	define( 'WZ_CRP_VERSION', '4.4.1' );
40	}
41
42
43	/**
44	* Holds the filesystem directory path (with trailing slash) for Contextual Related Posts.
45	*
46	* @since 2.3.0
47	*/
48	if ( ! defined( 'WZ_CRP_PLUGIN_FILE' ) ) {
49	define( 'WZ_CRP_PLUGIN_FILE', __FILE__ );
50	}
51
52
53	/**
54	* Holds the filesystem directory path (with trailing slash) for Contextual Related Posts.
55	*
56	* @since 2.3.0
57	*/
58	if ( ! defined( 'WZ_CRP_PLUGIN_DIR' ) ) {
59	define( 'WZ_CRP_PLUGIN_DIR', plugin_dir_path( WZ_CRP_PLUGIN_FILE ) );
60	}
61
62	/**
63	* Holds the filesystem directory path (with trailing slash) for Contextual Related Posts.
64	*
65	* @since 2.3.0
66	*/
67	if ( ! defined( 'WZ_CRP_PLUGIN_URL' ) ) {
68	define( 'WZ_CRP_PLUGIN_URL', plugin_dir_url( WZ_CRP_PLUGIN_FILE ) );
69	}
70
71	/**
72	* Holds the default thumbnail URL for Contextual Related Posts.
73	*
74	* @since 4.2.0
75	*/
76	if ( ! defined( 'WZ_CRP_DEFAULT_THUMBNAIL_URL' ) ) {
77	define( 'WZ_CRP_DEFAULT_THUMBNAIL_URL', WZ_CRP_PLUGIN_URL . 'default.png' );
78	}
79
80	/**
81	* Maximum words to match in the content.
82	*
83	* @since 2.3.0
84	*/
85	if ( ! defined( 'CRP_MAX_WORDS' ) ) {
86	define( 'CRP_MAX_WORDS', 100 );
87	}
88
89	/**
90	* CRP Cache expiration time.
91	*
92	* @since 3.0.0
93	*/
94	if ( ! defined( 'CRP_CACHE_TIME' ) ) {
95	define( 'CRP_CACHE_TIME', WEEK_IN_SECONDS );
96	}
97
98	/**
99	* CRP Database version.
100	*
101	* @since 3.5.0
102	*/
103	if ( ! defined( 'WZ_CRP_DB_VERSION' ) ) {
104	define( 'WZ_CRP_DB_VERSION', '1.0' );
105	}
106
107	if ( ! function_exists( __NAMESPACE__ . '\crp_deactivate_other_instances' ) ) {
108	/**
109	* Deactivate other instances of CRP when this plugin is activated.
110	*
111	* @param string $plugin The plugin being activated.
112	* @param bool $network_wide Whether the plugin is being activated network-wide.
113	*/
114	function crp_deactivate_other_instances( $plugin, $network_wide = false ) {
115	$free_plugin = 'contextual-related-posts/contextual-related-posts.php';
116	$pro_plugin = 'contextual-related-posts-pro/contextual-related-posts.php';
117
118	// Only proceed if one of our plugins is being activated.
119	if ( ! in_array( $plugin, array( $free_plugin, $pro_plugin ), true ) ) {
120	return;
121	}
122
123	$plugins_to_deactivate = array();
124	$deactivated_plugin = '';
125
126	// If pro is being activated, deactivate free.
127	if ( $pro_plugin === $plugin ) {
128	if ( is_plugin_active( $free_plugin ) \|\| ( $network_wide && is_plugin_active_for_network( $free_plugin ) ) ) {
129	$plugins_to_deactivate[] = $free_plugin;
130	$deactivated_plugin = 'Contextual Related Posts';
131	}
132	}
133
134	// If free is being activated, deactivate pro.
135	if ( $free_plugin === $plugin ) {
136	if ( is_plugin_active( $pro_plugin ) \|\| ( $network_wide && is_plugin_active_for_network( $pro_plugin ) ) ) {
137	$plugins_to_deactivate[] = $pro_plugin;
138	$deactivated_plugin = 'Contextual Related Posts Pro';
139	}
140	}
141
142	if ( ! empty( $plugins_to_deactivate ) ) {
143	deactivate_plugins( $plugins_to_deactivate, false, $network_wide );
144	set_transient( 'crp_deactivated_notice', $deactivated_plugin, 1 * HOUR_IN_SECONDS );
145	}
146	}
147	add_action( 'activated_plugin', __NAMESPACE__ . '\crp_deactivate_other_instances', 10, 2 );
148	}
149
150	// Show admin notice about automatic deactivation.
151	if ( ! has_action( 'admin_notices', __NAMESPACE__ . '\crp_show_deactivation_notice' ) ) {
152	add_action(
153	'admin_notices',
154	function () {
155	$deactivated_plugin = get_transient( 'crp_deactivated_notice' );
156	if ( $deactivated_plugin ) {
157	/* translators: %s: Name of the deactivated plugin */
158	$message = sprintf( __( "Contextual Related Posts and Contextual Related Posts PRO should not be active at the same time. We've automatically deactivated %s.", 'contextual-related-posts' ), $deactivated_plugin );
159	?>
160	<div class="updated" style="border-left: 4px solid #ffba00;">
161	<p><?php echo esc_html( $message ); ?></p>
162	</div>
163	<?php
164	delete_transient( 'crp_deactivated_notice' );
165	}
166	}
167	);
168	}
169
170	// Load the autoloader.
171	if ( ! function_exists( __NAMESPACE__ . '\autoload' ) ) {
172	require_once plugin_dir_path( __FILE__ ) . 'includes/autoloader.php';
173	}
174
175	// Load Composer dependencies if available.
176	$composer_autoload = plugin_dir_path( __FILE__ ) . 'vendor/autoload.php';
177	if ( file_exists( $composer_autoload ) ) {
178	require_once $composer_autoload;
179	}
180
181	if ( ! function_exists( __NAMESPACE__ . '\crp_freemius' ) ) {
182	require_once plugin_dir_path( __FILE__ ) . 'load-freemius.php';
183	}
184
185	if ( ! function_exists( __NAMESPACE__ . '\wz_crp' ) ) {
186	/**
187	* Returns the instance of the Contextual Related Posts main class.
188	*
189	* @since 4.0.0
190	*
191	* @return \WebberZone\Contextual_Related_Posts\Main The Contextual Related Posts Main instance.
192	*/
193	function wz_crp() {
194	return \WebberZone\Contextual_Related_Posts\Main::get_instance();
195	}
196	}
197
198	if ( ! function_exists( __NAMESPACE__ . '\load' ) ) {
199	/**
200	* The main function responsible for returning the one true WebberZone Contextual Related Posts instance to functions everywhere.
201	*
202	* @since 3.5.0
203	*/
204	function load(): void {
205	wz_crp();
206	}
207	add_action( 'plugins_loaded', __NAMESPACE__ . '\load' );
208	}
209
210	/*
211	*----------------------------------------------------------------------------
212	* Include files
213	*----------------------------------------------------------------------------
214	*/
215	if ( ! function_exists( 'crp_get_settings' ) ) {
216	require_once plugin_dir_path( __FILE__ ) . 'includes/options-api.php';
217	require_once plugin_dir_path( __FILE__ ) . 'includes/class-crp-query.php';
218	require_once plugin_dir_path( __FILE__ ) . 'includes/functions.php';
219	}
220
221	// Register activation hook.
222	register_activation_hook( __FILE__, __NAMESPACE__ . '\Admin\Activator::activation_hook' );
223
224	// Register deactivation hook.
225	register_deactivation_hook( __FILE__, __NAMESPACE__ . '\Admin\Activator::deactivation_hook' );
226
227	/**
228	* Global variable holding the current settings for Contextual Related Posts
229	*
230	* @since 1.8.10
231	*
232	* @var array
233	*/
234	global $crp_settings;
235	$crp_settings = \crp_get_settings();
236