Bug #74230 [Opn]: iconv fails to fail on surrogates

Edit report at https://bugs.php.net/bug.php?id=74230&edit=1 ID: 74230 Updated by: ab@php.net Reported by: paul dot crovella at gmail dot com Summary: iconv fails to fail on surrogates Status: Open Type: Bug Package: ICONV related Operating System: Windows PHP Version: 7.1.2 Block user comment: N Private report: N New Comment: Thanks for the report. This seems to be the libiconv issue. The library used is quite old, but surprisingly libiconv-1.15 was released a month ago after 6 years of silence :) I'm goint to check with it. Otherwise, in 7.1 you might get an acceptable result with sapi_windows_cp_conv(). Thanks. Previous Comments: ------------------------------------------------------------------------ [2017-03-09 10:48:45] paul dot crovella at gmail dot com Description: ------------ Surrogate codepoints cannot be validly encoded in UTF-8. Iconv should return false when given a byte sequence that would encode them and an in_charset of 'UTF-8'. This works as expected on Linux https://3v4l.org/Ff6cr but doesn't on Windows (tested with PHP 7.0.16 and 7.1.2.) Test script: --------------- $high = "\xED\xa1\x92"; // codepoint D852 $low = "\xED\xBD\xA2"; // codepoint DF62 $pair = $high.$low; var_dump( @\iconv('UTF-8', 'UTF-8', $high) === false, @\iconv('UTF-8', 'UTF-8', $low) === false, @\iconv('UTF-8', 'UTF-8', $pair) === false ); Expected result: ---------------- bool(true) bool(true) bool(true) Actual result: -------------- bool(false) bool(false) bool(false) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=74230&edit=1