自 PHP 5.6 以来，iconv_set_encoding 真的被弃用了吗？
Is iconv_set_encoding really deprecated since PHP 5.6?
manual 说不是，尽管我在 PHP 5.6 中收到以下错误：
Deprecated functionality: iconv_set_encoding(): Use of iconv.internal_encoding is deprecated in...
PHPCompatibility Code Sniffer 标准也找不到它。我对此有点困惑。
PHP 手册说 "iconv runtime configuration" page:
iconv.input_encoding string
Warning:
This feature has been DEPRECATED as of PHP 5.6.0. Relying on this feature is highly discouraged.
manual 说不是，尽管我在 PHP 5.6 中收到以下错误：
Deprecated functionality: iconv_set_encoding(): Use of iconv.internal_encoding is deprecated in...
PHPCompatibility Code Sniffer 标准也找不到它。我对此有点困惑。
PHP 手册说 "iconv runtime configuration" page:
iconv.input_encoding string
Warning: This feature has been DEPRECATED as of PHP 5.6.0. Relying on this feature is highly discouraged.