Description:
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First explain difference between UTF8 and UTF8Y - this codepages idential, except that UTF8Y files have 3 byte signature code EFBBBF - wich speedup text processor detection of UTF8 codepage. In most text processors, if u save file with UTF8 codepage, actualy u get it with UTF8Y (example Windows Notepad, CodeGear RAD Studio, Microsoft Visual Studio). So the problem starts from here!

PHP text processor does not recognise UTF8Y signature, and outputs this 3 bytes as HTML content. As result we have problem using funcions that requires headers changed (header, start_session, setcookie, e.t.c.) - Always error "Headers already sent at line 1". It seems that PHP does not ignore SIG bytes, as it should.

This make programmers realy hard to detect the error problem. There is no good editors under windows - wich can save files in UTF8 (not UTF8Y). As result many users cant use UTF8Y files as PHP scripts

Thanks for attension. With respect from Russian programmer For.Rest (nick)

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Same text in Russian
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??? ?????? ??????? ??????? ????? UTF8 ? UTF8Y - ??? ????????? ?????????, ?? ??????????? ????, ??? UTF8Y ????? ????? 3 ???????? ????????? ? ?????? ????? EFBBBF - ??????? ???????? ??????????? UTF8 ?????????? ????????????. ?? ?????? ????????? ??????????? ??? ?????????? ????? ? ????????? UTF8, ? ?????????? ?????????? UTF8Y (????????? Windows Notepad, CodeGear RAD Studio, Microsoft Visual Studio). ????????? ?????????? ?????? ? ?????!

????????? ????????? PHP ?? ?????????? ????????? UTF8Y, ? ??????? ?? ??? 3 ????? HTML ???????????. ? ?????????? ????? ?????? ????????? ????????????? ??????? ????????? ????????? ????????? ???????? (header, start_session, setcookie, ? ?.?.) - ?????? ????? ?????? "Headers already sent at line 1". ???????????? ????????, ??? PHP ?? ?????????? ????? ?????????, ??? ??????.

??? ??? ??????? ??????? ????????? ????????????? ? ?????? ??????? ??????. ??? Windows ?? ?????????? ??????? ?????????? ??????, ??????? ????? ????????? ????? ? UTF8 (?? UTF8Y). ??? ?????????, ????????? ????????????? ?? ????? ???????????? UTF8Y ????? ? ???? PHP ????????

??????? ?? ????????. ? ????????? ?? ??????, ??????????? For.Rest