1. Changes to INI directives
=============================
-- The default character set is now UTF-8 when the default_charset
- php.ini directive is not explicitly set. This applies to functions
- such as htmlentities() and htmlspecialchars(). If you were relying
- on the previous default of ISO-8859-1 you will need to add:
-
- default_charset = iso-8859-1
-
- to your php.ini to preserve pre-PHP 5.4 behavior.
-
- PHP 5.4 now checks at compile time if /dev/urandom or /dev/arandom
are present. If either is available, session.entropy_file now
defaults to that file and session.entropy_length defaults to 32.
- call_user_func_array() no longer allows call-time pass by reference.
+- the default character set for htmlspecialchars() and htmlentities() is
+ now UTF-8. In previous versions it was ISO-8859-1. Note that changing
+ your output charset via the php.ini default_charset directive does not
+ affect htmlspecialchars/htmlentities unless you are passing "" (an
+ empty string) as the encoding parameter to your htmlspecialchars/htmlentities
+ calls.
+
- htmlentities() and htmlspecialchars() are stricter in the code units they
accept for the asian encodings. For Big5-HKSCS, the octets 0x80 and 0xFF are
rejected. For GB2312/EUC-CN, the octets 0x8E, 0x8F, 0xA0 and 0xFF are