Does your server have the PHP Normalizer extension installed? That extension is required to do an accurate count of characters in non-latin alphabets.
What version of WP to Twitter are you using?
WP to Twitter 3.1.9
php.ini:
…
extension=php_intl.dll
…
phpinfo:
Internationalization support enabled
version 1.1.0
ICU version 49.1.2
ICU Data version 49.1.2
Directive Local Value Master Value
intl.default_locale no value no value
intl.error_level 0 0
Well, that looks right. What exactly is it that you’re setting at 140 characters, by the way? Is it the length of the #post# excerpt?
If so, that’s not going to work; you don’t want your #post# excerpt to be longer than whatever is left after you’ve already used the URL and date.
You’d only be able to use a 140 character post excerpt if you don’t have anything else in the Tweet.
Thanks Joe for U time for my problem.
I tried to post only Latin characters string. 140 symb. + #post# #url# #date#
“This is 140 Latin symb. sting: qwert yuiop asdfg hjkl zxcvb nm 123456789 QWERT YUIOP ASDFG HJKL ZXCVB NM 0987654321 qwert yuiop asdfg hjkl .”
Tweet sent successfully.
Завтра: This is 140 Latin symb. sting: qwert yuiop asdfg hjkl zxcvb nm 123456789 QWERT YUIOP ASDFG HJKL http://astrobene.ru/story/5205 Янв 7, 2016
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Then, I tried to post only Cyrillic characters string. 140 symb. + #post# #url# #date#
“This is 140 Cyrillic symb. sting: йцукенгшщзхъ фывапролджэ ячсмитьбю ЙЦУКЕНГШЩЗХЪ ФЫВАПРОЛДЖЭ ЯЧСМИТЬБЮ йцукенгшщзхъ фывапролджэ ячсмитьбю .”
403 Forbidden: The request is understood, but has been refused by Twitter. Possible reasons: too many Tweets, same Tweet submitted twice, Tweet longer than 140 characters.
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P.S.
WordPress updated to v4.4.1
