Try this..... $orig_string = "123456789"; $insert_string = "-"; $position = "4"; $newstring=substr_replace($orig_string, $insert_string, $position, 0); echo $newstring; Regards, Julianne From: eriknjenga@gmail.com Date: Mon, 25 Oct 2010 20:12:49 +0300 To: skunkworks@lists.my.co.ke Subject: [Skunkworks] PHP String Manipulation Anyone got an idea of an internal PHP function that would enable me to insert a symbol e.g. '-' after every 4 characters in a String? e.g. 12345678 becomes 1234-5678. -- Thanks and Regards,Erick Njenga Nyachwaya, M: +254-725-008-790 _______________________________________________ Skunkworks mailing list Skunkworks@lists.my.co.ke http://lists.my.co.ke/cgi-bin/mailman/listinfo/skunkworks ------------ Skunkworks Rules http://my.co.ke/phpbb/viewtopic.php?f=24&t=94 ------------ Other services @ http://my.co.ke