used to return "" and not bool(false). It's not worth keeping it because
STR_FREE() and zval_dtor() always have to check for it and it slows down
the general case. In addition, it seems that empty_string has been abused
quite a lot, and was used not only for setting zval's but generally in
PHP code instead of "", which wasn't the intention. Last but not least,
nuking empty_string should improve stability as I doubt every place
correctly checked if they are not mistakenly erealloc()'ing it or
calling efree() on it.
NOTE: Some code is probably broken. Each extension maintainer should
check and see that my changes are OK. Also, I haven't had time to touch
PECL yet. Will try and do it tomorrow.
Merge from branch with one main difference: the default save_path is
set to the empty string on all platforms, whereas the code in the
branch only does so for win32.
# ALLOC_INIT_ZVAL() initialises the type field to IS_NULL, while
# MAKE_STD_ZVAL() doesn't. This caused a kind of random crash
# when zval_ptr_dtor() was applied on an intact zval created by
# the latter method.
#
# Please check relevant bugs again. There should be some that
# have already been marked as bogus.
Note: You should not be using ZVAL_DELREF() in day to day usage. Instead,
you should use zval_ptr_dtor(). Use ZVAL_DELREF() only if you're
messing with the refcount directly and know what you're doing.
Note #2: For clarity, if you want to initialize a new zval with a refcount
of 0, it's best to do that directly, instead of using ZVAL_DELREF
after allocating the zval...
closing them).
Regions should be locked only briefly and should be unlocked before
closing a file or exiting the program. On Win32 locked files that are
closed without being explicitly unlocked will be unlocked only when "system
resources become avaliable".
of expressing references (e.g. WDDX) and deserializing a session variable
whose name conflicted with an existing symbol in the global scope.
PR: #25307
Submitted by: Jani Taskinen
Speling fixes: me
