#49536 [NEW]: mb_detect_encoding() returns incorrect results when strict_mode is turned on

From: moriyoshi@php.net Operating system: * PHP version: 5.3SVN-2009-09-11 (SVN) PHP Bug Type: mbstring related Bug description: mb_detect_encoding() returns incorrect results when strict_mode is turned on Description: ------------ mb_detect_encoding() produces wrong results from incomplete multibyte sequences when strict_mode is turned on. (originally reported by komura.db2r1e|at|gmail|dot|com) Reproduce code: --------------- // non-strict mode var_dump(mb_detect_encoding("A\x81", "SJIS", false)); // strict mode var_dump(mb_detect_encoding("A\x81", "SJIS", true)); // non-strict mode var_dump(mb_detect_encoding("\xc0\x00", "UTF-8", false)); // strict mode var_dump(mb_detect_encoding("\xc0\x00", "UTF-8", true)); Expected result: ---------------- string(4) "SJIS" bool(false) string(5) "UTF-8" bool(false) Actual result: -------------- string(4) "SJIS" string(4) "SJIS" string(5) "UTF-8" string(5) "UTF-8" -- Edit bug report at http://bugs.php.net/?id=49536&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=49536&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=49536&r=trysnapshot53 Try a snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=49536&r=trysnapshot60 Fixed in SVN: http://bugs.php.net/fix.php?id=49536&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=49536&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=49536&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=49536&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=49536&r=needscript Try newer version: http://bugs.php.net/fix.php?id=49536&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=49536&r=support Expected behavior: http://bugs.php.net/fix.php?id=49536&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=49536&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=49536&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=49536&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=49536&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=49536&r=dst IIS Stability: http://bugs.php.net/fix.php?id=49536&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=49536&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=49536&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=49536&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=49536&r=mysqlcfg