#45676 [Opn->Bgs]: The documentation for strlen() is inaccurate

ID: 45676 Updated by: rquadling@php.net Reported By: mtesta at money-media dot com -Status: Open +Status: Bogus Bug Type: Documentation problem Operating System: Windows XP PHP Version: Irrelevant New Comment: Currently the documentation doesn't reflect the changes coming in PHP6 with regard to unicode strings. In V5 and lower, all strings should be considered as binary. Again, there is a user note covering a strlen function for unicode strings. Previous Comments: ------------------------------------------------------------------------ [2008-08-01 14:52:35] mtesta at money-media dot com Description: ------------ The documentation for strlen() is inaccurate. From my tests it looks like strlen() returns the number of bytes in a string, not the number of characters. Reproduce code: --------------- $str = '€'; echo 'strlen(€) when € is encoded in ANSI (only one byte long): ' . strlen(mb_convert_encoding($str, 'WINDOWS-1252')); echo ' - strlen(€) when € is encoded in UTF-8 (two bytes long): ' . strlen(mb_convert_encoding($str, 'UTF-8')); Expected result: ---------------- strlen(€) when € is encoded in ANSI (only one byte long): 1 - strlen(€) when € is encoded in UTF-8 (only two bytes long): 1 Actual result: -------------- strlen(€) when € is encoded in ANSI (only one byte long): 1 - strlen(€) when € is encoded in UTF-8 (only two bytes long): 2 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=45676&edit=1