- fixed #1241 issue;

includes/admin/class-admin.php

@@ -93,7 +93,6 @@ if ( ! class_exists( 'um\admin\Admin' ) ) {
 			$this->secure();
 		}
 
-
 		function init_variables() {
 			$this->role_meta = apply_filters(
 				'um_role_meta_map',

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;
+		}
+	}
+}

includes/core/um-filters-fields.php

@@ -706,7 +706,9 @@ function um_field_non_utf8_value( $value ) {
 	if ( function_exists( 'mb_detect_encoding' ) ) {
 		$encoding = mb_detect_encoding( $value, 'utf-8, iso-8859-1, ascii', true );
 		if ( strcasecmp( $encoding, 'UTF-8' ) !== 0 ) {
-			$value = iconv( $encoding, 'utf-8', $value );
+			if ( function_exists( 'iconv' ) ) {
+				$value = iconv( $encoding, 'utf-8', $value );
+			}
 		}
 	}
 

includes/core/um-filters-profile.php

@@ -62,7 +62,7 @@ function um_dynamic_user_profile_title( $title, $id = '' ) {
 		}
 	}
 
-	if ( ! function_exists( 'utf8_decode' ) ) {
+	if ( ! function_exists( 'mb_convert_encoding' ) ) {
 		return $title;
 	}
 

includes/core/um-filters-user.php

@@ -285,6 +285,7 @@ add_filter( 'um_clean_user_basename_filter', 'um_clean_user_basename_filter', 2,
  * @return array
  */
 function um_before_update_profile( $changes, $user_id ) {
+	// todo check if this option required and maybe there are some WordPress native ways how to make that without custom unused functions. Maybe fully deprecate 'um_force_utf8_strings' option which doesn't exist in UI.
 	if ( ! UM()->options()->get( 'um_force_utf8_strings' ) ) {
 		return $changes;
 	}

includes/um-short-functions.php

@@ -2662,9 +2662,13 @@ function um_force_utf8_string( $value ) {
 	if ( is_array( $value ) ) {
 		$arr_value = array();
 		foreach ( $value as $key => $v ) {
+			if ( ! function_exists( 'utf8_decode' ) ) {
+				continue;
+			}
+
 			$utf8_decoded_value = utf8_decode( $v );
 
-			if ( mb_check_encoding( $utf8_decoded_value, 'UTF-8' ) ) {
+			if ( function_exists( 'mb_check_encoding' ) && mb_check_encoding( $utf8_decoded_value, 'UTF-8' ) ) {
 				array_push( $arr_value, $utf8_decoded_value );
 			} else {
 				array_push( $arr_value, $v );
@@ -2674,11 +2678,12 @@ function um_force_utf8_string( $value ) {
 
 		return $arr_value;
 	} else {
+		if ( function_exists( 'utf8_decode' ) ) {
+			$utf8_decoded_value = utf8_decode( $value );
 
-		$utf8_decoded_value = utf8_decode( $value );
-
-		if (mb_check_encoding( $utf8_decoded_value, 'UTF-8' )) {
-			return $utf8_decoded_value;
+			if ( function_exists( 'mb_check_encoding' ) && mb_check_encoding( $utf8_decoded_value, 'UTF-8' ) ) {
+				return $utf8_decoded_value;
+			}
 		}
 	}