diff --git a/reference/strings/functions/explode.xml b/reference/strings/functions/explode.xml
index 81aa3a3306..e1e09a88cc 100644
--- a/reference/strings/functions/explode.xml
+++ b/reference/strings/functions/explode.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.10 $ -->
+<!-- $Revision: 1.11 $ -->
 <!-- splitted from ./en/functions/strings.xml, last change in rev 1.2 -->
   <refentry id="function.explode">
    <refnamediv>
@@ -82,7 +82,7 @@ $str = 'one|two|three|four';
 // positive limit
 print_r(explode('|', $str, 2));
 
-// negative limit
+// negative limit (since PHP 5.1)
 print_r(explode('|', $str, -1));
 ?>
 ]]>