#32311 [Fbk->Opn]: mb_encode_mimeheader does not properly escape characters

ID: 32311 User updated by: mortoray at ecircle-ag dot com Reported By: mortoray at ecircle-ag dot com -Status: Feedback +Status: Open Bug Type: mbstring related Operating System: Windows2000 PHP Version: 4.3.10 New Comment: The snapshop provided does not contain an php_mbstring.dll, and thus this function does not appear to be defined.... (Windows ZIP) Previous Comments: ------------------------------------------------------------------------ [2005-03-16 00:58:48] sniper@php.net Please try using this CVS snapshot: http://snaps.php.net/php4-STABLE-latest.tar.gz For Windows: http://snaps.php.net/win32/php4-win32-STABLE-latest.zip ------------------------------------------------------------------------ [2005-03-15 10:30:51] mortoray at ecircle-ag dot com 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 this bug report at http://bugs.php.net/?id=32311&edit=1