note 85994 added to function.substr

Your function doesn't quite work as expected. If you want to insert something, say 20 characters from the end it works, but not 20 characters from the beginning. Slight tweak: function insert_substr($str, $pos, $substr) { $pos = strlen($str) - $pos; $part1 = substr($str, 0, -$pos); $part2 = substr($str, -$pos); return $part1.$substr.$part2; } $str = "12345678901234567890123456789"; echo insert_substr($str, 20, "<br />"); Output: "12345678901234567890<br />123456789" ---- Server IP: 92.48.74.199 Probable Submitter: 82.2.56.49 ---- Manual Page -- http://www.php.net/manual/en/function.substr.php Edit -- https://master.php.net/note/edit/85994 Del: integrated -- https://master.php.net/note/delete/85994/integrated Del: useless -- https://master.php.net/note/delete/85994/useless Del: bad code -- https://master.php.net/note/delete/85994/bad+code Del: spam -- https://master.php.net/note/delete/85994/spam Del: non-english -- https://master.php.net/note/delete/85994/non-english Del: in docs -- https://master.php.net/note/delete/85994/in+docs Del: other reasons-- https://master.php.net/note/delete/85994 Reject -- https://master.php.net/note/reject/85994 Search -- https://master.php.net/manage/user-notes.php