Bug #68821 [NEW]: Underscores left by mb_decode_mimeheaders

From: php dot bohwaz at miam dot kd2 dot org Operating system: Debian/Linux PHP version: 5.4.36 Package: mbstring related Bug Type: Bug Bug description:Underscores left by mb_decode_mimeheaders Description: ------------ mb_decode_mimeheaders doesn't decode underscores as per the RFC 2047: "The 8-bit hexadecimal value 20 (e.g., ISO-8859-1 SPACE) may be represented as "_" (underscore, ASCII 95.). (This character may not pass through some internetwork mail gateways, but its use will greatly enhance readability of "Q" encoded data with mail readers that do not support this encoding.) Note that the "_" always represents hexadecimal 20, even if the SPACE character occupies a different code position in the character set in use." One example: Subject: =?ISO-8859-1?Q?spring_into_ALDI_for_this_week=92s_special_buys_fr?= =?ISO-8859-1?Q?om_thurs_30_sep_=96_hurry,_limited_stocks_in_store?= Test script: --------------- <?php $subject = "=?ISO-8859-1?Q?spring_into_ALDI_for_this_week=92s_special_buys_fr?= =?ISO-8859-1?Q?om_thurs_30_sep_=96_hurry,_limited_stocks_in_store?="; echo mb_decode_mimeheaders($subject); ?> Expected result: ---------------- spring into ALDI for this weeks special buys from thurs 30 sep hurry, limited stocks in store Actual result: -------------- spring_into_ALDI_for_this_weeks_special_buys_from_thurs_30_sep__hurry,_limited_stocks_in_store -- Edit bug report at https://bugs.php.net/bug.php?id=68821&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=68821&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=68821&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=68821&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=68821&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=68821&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=68821&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=68821&r=needscript Try newer version: https://bugs.php.net/fix.php?id=68821&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=68821&r=support Expected behavior: https://bugs.php.net/fix.php?id=68821&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=68821&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=68821&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=68821&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=68821&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=68821&r=dst IIS Stability: https://bugs.php.net/fix.php?id=68821&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=68821&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=68821&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=68821&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=68821&r=mysqlcfg