diff --git a/reference/mbstring/functions/mb-strimwidth.xml b/reference/mbstring/functions/mb-strimwidth.xml
index 8246e974f2..3462e38482 100644
--- a/reference/mbstring/functions/mb-strimwidth.xml
+++ b/reference/mbstring/functions/mb-strimwidth.xml
@@ -17,7 +17,11 @@
stringnullencoding&null;
- Truncates stringstring to specified width.
+ Truncates stringstring to specified width,
+ where halfwidth characters count as 1, and fullwidth
+ characters count as 2.
+ See &url.unicode.reports.tr;11/
+ for details regarding East Asian character widths.
diff --git a/reference/mbstring/functions/mb-strwidth.xml b/reference/mbstring/functions/mb-strwidth.xml
index 5625cbc1e8..d391c24eee 100644
--- a/reference/mbstring/functions/mb-strwidth.xml
+++ b/reference/mbstring/functions/mb-strwidth.xml
@@ -17,6 +17,8 @@
Returns the width of stringstring,
where halfwidth characters count as 1, and fullwidth
characters count as 2.
+ See &url.unicode.reports.tr;11/
+ for details regarding East Asian character widths.
The fullwidth characters are:
@@ -109,6 +111,30 @@
+
+ &reftitle.examples;
+
+ mb_strwidth example
+
+
+]]>
+
+ &example.outputs;
+
+
+
+
+
+
&reftitle.seealso;