diff --git a/reference/mysqli/mysqli/commit.xml b/reference/mysqli/mysqli/commit.xml
index 94254d89a6..d05936ed32 100644
--- a/reference/mysqli/mysqli/commit.xml
+++ b/reference/mysqli/mysqli/commit.xml
@@ -110,7 +110,10 @@ $mysqli->query("INSERT INTO Language VALUES ('DEU', 'Bavarian', 'F', 11.2)");
 $mysqli->query("INSERT INTO Language VALUES ('DEU', 'Swabian', 'F', 9.4)");
 
 /* commit transaction */
-$mysqli->commit();
+if (!$mysqli->commit()) {
+	print("Transaction commit failed\n");
+	exit();
+}
 
 /* drop table */
 $mysqli->query("DROP TABLE Language");
@@ -142,7 +145,10 @@ mysqli_query($link, "INSERT INTO Language VALUES ('DEU', 'Bavarian', 'F', 11.2)"
 mysqli_query($link, "INSERT INTO Language VALUES ('DEU', 'Swabian', 'F', 9.4)");
 
 /* commit transaction */
-mysqli_commit($link);
+if (!mysqli_commit($link)) {
+	print("Transaction commit failed\n");
+	exit();
+}
 
 /* close connection */
 mysqli_close($link);