diff --git a/lib/outputcomponents.php b/lib/outputcomponents.php
index 87e5e4939b3..672c71299b0 100644
--- a/lib/outputcomponents.php
+++ b/lib/outputcomponents.php
@@ -3605,7 +3605,10 @@ class custom_menu_item implements renderable, templatable {
      */
     public function __construct($text, moodle_url $url = null, $title = null, $sort = null, custom_menu_item $parent = null,
         array $attributes = []) {
-        $this->text = $text;
+
+        // Use class setter method for text to ensure it's always a string type.
+        $this->set_text($text);
+
         $this->url = $url;
         $this->title = $title;
         $this->sort = (int)$sort;
@@ -3878,7 +3881,7 @@ class custom_menu extends custom_menu_item {
             $settings = explode('|', $line);
             foreach ($settings as $i => $setting) {
                 $setting = trim($setting);
-                if (!empty($setting)) {
+                if ($setting !== '') {
                     switch ($i) {
                         case 0: // Menu text.
                             $itemtext = ltrim($setting, '-');