diff --git a/components/string.rst b/components/string.rst
index f754bfdb7ea..d5110cac96f 100644
--- a/components/string.rst
+++ b/components/string.rst
@@ -318,9 +318,15 @@ Methods to Search and Replace
     // checks if the string contents are exactly the same as the given contents
     u('foo')->equalsTo('foo'); // true
 
-    // checks if the string content match the given regular expression
+    // checks if the string content match the given regular expression.
+    // You can pass flags for preg_match() as second argument. If PREG_PATTERN_ORDER
+    // or PREG_SET_ORDER are passed, preg_match_all() will be used.
     u('avatar-73647.png')->match('/avatar-(\d+)\.png/');
     // result = ['avatar-73647.png', '73647']
+    u('avatar-73647.png')->match('/avatar-(\d+)(-\d+)?\.png/', \PREG_UNMATCHED_AS_NULL);
+    // result = ['avatar-73647.png', '73647', null]
+    u('206-555-0100 and 800-555-1212')->match('/\d{3}-\d{3}-\d{4}/', \PREG_PATTERN_ORDER);
+    // result = [['206-555-0100', '800-555-1212']]
 
     // checks if the string contains any of the other given strings
     u('aeiou')->containsAny('a');                 // true