diff --git a/reference/var/functions/is-int.xml b/reference/var/functions/is-int.xml
index e2e85028f0..f06d7afff7 100644
--- a/reference/var/functions/is-int.xml
+++ b/reference/var/functions/is-int.xml
@@ -53,26 +53,27 @@
     <programlisting role="php">
 <![CDATA[
 <?php
-if (is_int(23)) {
-    echo "is integer\n";
-} else {
-    echo "is not an integer\n";
+$values = array(23, "23", 23.5, "23.5", null, true, false);
+foreach ($values as $value) {
+    echo "is_int(";
+    var_export($value);
+    echo ") = ";
+    var_dump(is_int($value));
 }
-var_dump(is_int(23));
-var_dump(is_int("23"));
-var_dump(is_int(23.5));
-var_dump(is_int(true));
 ?>
 ]]>
     </programlisting>
     &example.outputs;
     <screen>
 <![CDATA[
-is integer
-bool(true)
-bool(false)
-bool(false)
-bool(false)
+is_int(23) = bool(true)
+is_int('23') = bool(false)
+is_int(23.5) = bool(false)
+is_int('23.5') = bool(false)
+is_int(NULL) = bool(false)
+is_int(true) = bool(false)
+is_int(false) = bool(false)
+
 ]]>
     </screen>
    </example>