#32311 [NEW]: mb_encode_mimeheader does not properly escape characters

From: mortoray at ecircle-ag dot com Operating system: Windows2000 PHP version: 4.3.10 PHP Bug Type: mbstring related Bug description: mb_encode_mimeheader does not properly escape characters Description: ------------ At least for Q encoding, this function is unsafe and does not encode correctly. Raw characters which appear as RFC2047 sequences are simply left as is. Ex: mb_encode_mimeheader( '=?iso-8859-1?q?this=20is=20some=20text?=' ); returns '=?iso-8859-1?q?this=20is=20some=20text?=' The exact same string, which is obviously not the encoding for the source string. That is, mb_encode_mimeheader does not do any type of escaping. That is, the following condition is not always true: mb_decode_mimeheader( mb_encode_mimeheader( $text ) ) == $text Reproduce code: --------------- $text = '=?iso-8859-1?q?this=20is=20some=20text?='; assert( mb_decode_mimeheader( mb_encode_mimeheader( $text ) ) == $text ); Expected result: ---------------- The decode/encode sequence should always return the original text. Actual result: -------------- Returned result is different than original (that is, the assertion fails). -- Edit bug report at http://bugs.php.net/?id=32311&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=32311&r=trysnapshot4 Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=32311&r=trysnapshot50 Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=32311&r=trysnapshot51 Fixed in CVS: http://bugs.php.net/fix.php?id=32311&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=32311&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=32311&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=32311&r=needscript Try newer version: http://bugs.php.net/fix.php?id=32311&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=32311&r=support Expected behavior: http://bugs.php.net/fix.php?id=32311&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=32311&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=32311&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=32311&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=32311&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=32311&r=dst IIS Stability: http://bugs.php.net/fix.php?id=32311&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=32311&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=32311&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=32311&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=32311&r=mysqlcfg