ID: 43840
Updated by: [EMAIL PROTECTED]
Reported By: josmessa at uk dot ibm dot com
Status: Open
Bug Type: mbstring related
Operating System: Windows XP
PHP Version: 5.2CVS-2008-01-14 (snap)
-Assigned To:
+Assigned To: hirokawa
New Comment:
assigning to maintainer
Previous Comments:
------------------------------------------------------------------------
[2008-01-14 16:36:52] josmessa at uk dot ibm dot com
Description:
------------
The bounds check for the offest argument in mb_strpos appears to be a
byte count rather than a character count.
In the example below, $string_ascii is 21 characters long and
$string_mb is 21 characters (53 bytes) long. In both cases the needle
appears twice, first at position 9 and secondly at position 20.
With the multibyte string example, when the offset is past the
character count of the string it would be expected to return a warning
but instead a warning is returned when offest is past the byte count.
Reproduce code:
---------------
<?php
$offsets = array(20, 21, 22, 53, 54);
$string_mb =
base64_decode('5pel5pys6Kqe44OG44Kt44K544OI44Gn44GZ44CCMDEyMzTvvJXvvJbvvJfvvJjvvJnjgII=');
$needle = base64_decode('44CC');
foreach($offsets as $i) {
echo "\n-- Offset is $i --\n";
echo "--Multibyte String:--\n";
var_dump( mb_strpos($string_mb, $needle, $i, 'UTF-8') );
echo"--ASCII String:--\n";
var_dump(mb_strpos('This is na English ta', 'a', $i));
}
?>
Expected result:
----------------
-- Offset is 20 --
--Multibyte String:--
int(20)
--ASCII String:--
int(20)
-- Offset is 21 --
--Multibyte String:--
bool(false)
--ASCII String:--
bool(false)
-- Offset is 22 --
--Multibyte String:--
Warning: mb_strpos(): Offset not contained in string. in
...\mb_strpos.php on line 9
bool(false)
--ASCII String:--
Warning: mb_strpos(): Offset not contained in string. in
...\mb_strpos.php on line 11
bool(false)
-- Offset is 53 --
--Multibyte String:--
Warning: mb_strpos(): Offset not contained in string. in
...\mb_strpos.php on line 9
bool(false)
--ASCII String:--
Warning: mb_strpos(): Offset not contained in string. in
...\mb_strpos.php on line 11
bool(false)
-- Offset is 54 --
--Multibyte String:--
Warning: mb_strpos(): Offset not contained in string. in
...\mb_strpos.php on line 9
bool(false)
--ASCII String:--
Warning: mb_strpos(): Offset not contained in string. in
...\mb_strpos.php on line 11
bool(false)
Actual result:
--------------
-- Offset is 20 --
--Multibyte String:--
int(20)
--ASCII String:--
int(20)
-- Offset is 21 --
--Multibyte String:--
bool(false)
--ASCII String:--
bool(false)
-- Offset is 22 --
--Multibyte String:--
bool(false)
--ASCII String:--
Warning: mb_strpos(): Offset not contained in string. in
...\mb_strpos.php on line 11
bool(false)
-- Offset is 53 --
--Multibyte String:--
bool(false)
--ASCII String:--
Warning: mb_strpos(): Offset not contained in string. in
...\mb_strpos.php on line 11
bool(false)
-- Offset is 54 --
--Multibyte String:--
Warning: mb_strpos(): Offset not contained in string. in
...\mb_strpos.php on line 9
bool(false)
--ASCII String:--
Warning: mb_strpos(): Offset not contained in string. in
...\mb_strpos.php on line 11
bool(false)
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=43840&edit=1
