国际化与字符编码支持
PHP Manual

Pspell

User Contributed Notes

Andreas 20-Sep-2013 04:38
I've checked sources of PHP versions 5.3.27 and 5.5.4

Both include pspell:
php-5.5.4/ext/pspell
php-5.3.27/ext/pspell

Nevertheless, if you use precompiled versions you may have a different impression (e.g. on Ubuntu you need to install the package php5-pspell).

国际化与字符编码支持
PHP Manual