diff --git a/browse_foreigners.php b/browse_foreigners.php
index dea79c4e56..a073cb2bcb 100644
--- a/browse_foreigners.php
+++ b/browse_foreigners.php
@@ -34,10 +34,10 @@ $template = $containerBuilder->get('template');
 $containerBuilder->set(
     'browse_foreigners',
     new BrowseForeigners(
-        $GLOBALS['cfg']['LimitChars'],
-        $GLOBALS['cfg']['MaxRows'],
-        $GLOBALS['cfg']['RepeatCells'],
-        $GLOBALS['cfg']['ShowAll'],
+        (int) $GLOBALS['cfg']['LimitChars'],
+        (int) $GLOBALS['cfg']['MaxRows'],
+        (int) $GLOBALS['cfg']['RepeatCells'],
+        (bool) $GLOBALS['cfg']['ShowAll'],
         $GLOBALS['pmaThemeImage'],
         $template
     )
diff --git a/libraries/classes/Display/Results.php b/libraries/classes/Display/Results.php
index af1b1fb998..463d389b17 100644
--- a/libraries/classes/Display/Results.php
+++ b/libraries/classes/Display/Results.php
@@ -4449,7 +4449,7 @@ class Results
             mb_substr(
                 (string) $column_for_first_row,
                 0,
-                $GLOBALS['cfg']['LimitChars']
+                (int) $GLOBALS['cfg']['LimitChars']
             ) . '...'
         );
 
@@ -4478,7 +4478,7 @@ class Results
             mb_substr(
                 (string) $column_for_last_row,
                 0,
-                $GLOBALS['cfg']['LimitChars']
+                (int) $GLOBALS['cfg']['LimitChars']
             ) . '...'
         );
 
@@ -5682,7 +5682,7 @@ class Results
             $str = mb_substr(
                 $str,
                 0,
-                $GLOBALS['cfg']['LimitChars']
+                (int) $GLOBALS['cfg']['LimitChars']
             ) . '...';
             $truncated = true;
         } else {
diff --git a/libraries/classes/Relation.php b/libraries/classes/Relation.php
index 6b51d0e476..2e05aff0cd 100644
--- a/libraries/classes/Relation.php
+++ b/libraries/classes/Relation.php
@@ -1354,7 +1354,7 @@ class Relation
                         mb_substr(
                             $value,
                             0,
-                            $GLOBALS['cfg']['LimitChars']
+                            (int) $GLOBALS['cfg']['LimitChars']
                         ) . '...'
                     );
                 }
diff --git a/libraries/classes/Util.php b/libraries/classes/Util.php
index 18ed15fdce..5c8228f75a 100644
--- a/libraries/classes/Util.php
+++ b/libraries/classes/Util.php
@@ -2972,7 +2972,7 @@ class Util
                 mb_substr(
                     $printtype,
                     0,
-                    $GLOBALS['cfg']['LimitChars']
+                    (int) $GLOBALS['cfg']['LimitChars']
                 ) . '...'
             );
             $displayed_type .= '</abbr>';
@@ -4448,7 +4448,7 @@ class Util
         ) {
             $rows = $_SESSION['tmpval']['max_rows'];
         } else {
-            $rows = $GLOBALS['cfg']['MaxRows'];
+            $rows = (int) $GLOBALS['cfg']['MaxRows'];
             $_SESSION['tmpval']['max_rows'] = $rows;
         }