Fixes PHP error while loading non-existent options on multi sites ins…

…tances - see #8

CHANGELOG.md

@@ -3,6 +3,11 @@ All notable changes to **APCu Manager** are documented in this *changelog*.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and **APCu Manager** adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [3.7.2] - 2023-11-23
+
+### Fixed
+- In some edge-cases, multi sites instances may experience a PHP error while loading non-existent options (thanks to [Szabó József](https://github.com/er2es)).
+
 ## [3.7.1] - 2023-11-22
 
 ### Changed

includes/api/object-class.php

@@ -941,6 +941,21 @@ private function delete_non_persistent( $key ) {
 		return false;
 	}
 
+	/**
+	 * Retrieves the current network ID.
+	 *
+	 * @since 3.7.2
+	 *
+	 * @return int The ID of the current network.
+	 */
+	private function get_current_network_id() {
+		global $current_site;
+		if ( is_multisite() && isset( $current_site ) && $current_site instanceof WP_Network && isset( $current_site->id ) ) {
+			return absint( $current_site->id );
+		}
+		return 1;
+	}
+
 	/**
 	 * Retrieves the cache contents, if it exists.
 	 *
@@ -958,7 +973,7 @@ public function get( $key, $group = 'default', $force = false, &$success = null,
 		if ( ! $is_option ) {
 			// Prevent non-existent options or site-options from triggering any queries if in notoptions!
 			if ( 'options' === $group || 'site-options' === $group ) {
-				$notoptions = $this->get( 'site-options' === $group ? get_current_network_id() . ':notoptions' : 'notoptions', $group, false, $success, true );
+				$notoptions = $this->get( 'site-options' === $group ? $this->get_current_network_id() . ':notoptions' : 'notoptions', $group, false, $success, true );
 				if ( is_array( $notoptions ) && isset( $notoptions[ $key ] ) ) {
 					return false;
 				}

init.php

@@ -12,7 +12,7 @@
 define( 'APCM_PRODUCT_SHORTNAME', 'APCu' );
 define( 'APCM_PRODUCT_ABBREVIATION', 'apcm' );
 define( 'APCM_SLUG', 'apcu-manager' );
-define( 'APCM_VERSION', '3.7.1' );
+define( 'APCM_VERSION', '3.7.2-dev1' );
 define( 'APCM_CODENAME', '"-"' );
 
 define( 'APCM_CDN_AVAILABLE', true );