Bug #79122 [NEW]: mb_convert_encoding doesn't convert properly to UTF-16

From: pascu dot vlad at gmail dot com Operating system: Irrelevant PHP version: Irrelevant Package: Unicode Engine related Bug Type: Bug Bug description:mb_convert_encoding doesn't convert properly to UTF-16 Description: ------------ mb_convert_encoding seems to not produce correct results when dealing with higher Unicode characters. When supplying UTF-8 encoded strings,, the mb_* functions return all valid results for characters count, code point and byte count. However, after converting to UTF-16, the whole string is mangled. I have attached 4 links with relevant examples. Test script: --------------- https://3v4l.org/LQott https://3v4l.org/DrEcL https://3v4l.org/acOTR https://3v4l.org/5VXFC Expected result: ---------------- Correct result for total length (number of characters) and each character (code point + byte count) in both encodings, as documented here (links in order with code examples): https://www.iemoji.com/view/emoji/885/smileys-people/grinning-face https://www.iemoji.com/view/emoji/1659/flags/romania https://www.iemoji.com/view/emoji/1379/skin-tones/baby-light-skin-tone https://www.iemoji.com/view/emoji/306/symbols/hash-key Actual result: -------------- Correct result only for the supplied UTF-8 string and no valid results for any of the converted strings. -- Edit bug report at https://bugs.php.net/bug.php?id=79122&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=79122&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=79122&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=79122&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=79122&r=needscript Try newer version: https://bugs.php.net/fix.php?id=79122&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=79122&r=support Expected behavior: https://bugs.php.net/fix.php?id=79122&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=79122&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=79122&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=79122&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=79122&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=79122&r=dst IIS Stability: https://bugs.php.net/fix.php?id=79122&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=79122&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=79122&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=79122&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=79122&r=mysqlcfg