- fixed #1241 issue;

includes/common/class-init.php

@@ -23,6 +23,7 @@ if ( ! class_exists( 'um\common\Init' ) ) {
 			$this->cpt()->hooks();
 			$this->screen();
 			$this->secure()->hooks();
+			$this->site_health();
 		}
 
 		/**
@@ -60,5 +61,17 @@ if ( ! class_exists( 'um\common\Init' ) ) {
 			}
 			return UM()->classes['um\common\secure'];
 		}
+
+		/**
+		 * @since 2.6.8
+		 *
+		 * @return Site_Health
+		 */
+		public function site_health() {
+			if ( empty( UM()->classes['um\common\site_health'] ) ) {
+				UM()->classes['um\common\site_health'] = new Site_Health();
+			}
+			return UM()->classes['um\common\site_health'];
+		}
 	}
 }

includes/common/class-site-health.php

@@ -0,0 +1,42 @@
+<?php
+namespace um\common;
+
+if ( ! defined( 'ABSPATH' ) ) {
+	exit;
+}
+
+if ( ! class_exists( 'um\common\Site_Health' ) ) {
+
+	/**
+	 * Class Site_Health
+	 *
+	 * @package um\common
+	 *
+	 * @since 2.6.8
+	 */
+	class Site_Health {
+
+		/**
+		 * Site_Health constructor.
+		 *
+		 * @since 2.6.8
+		 */
+		public function __construct() {
+			add_filter( 'site_status_test_php_modules', array( $this, 'add_required_modules' ) );
+		}
+
+		/**
+		 * Extends required PHP libraries.
+		 *
+		 * @param array $modules
+		 *
+		 * @return array
+		 */
+		public function add_required_modules( $modules ) {
+			$modules['mbstring']['required'] = true;
+			$modules['exif']['required']     = true;
+			$modules['iconv']['required']    = true;
+			return $modules;
+		}
+	}
+}