Previously, FFI_G(symbols) and FFI_G(tags) were never cleaned up when calling
new on an existing object. However, if cdef() is called without parameters these
globals are NULL and might be created when new() creates new definitions. These
would then be discarded without freeing them.
Closes GH-11751
`zend_uchar` suggests that the value is an ASCII character, but here,
it's about very small integers. This is misleading, so let's use a
C99 integer instead.
On all architectures currently supported by PHP, `zend_uchar` and
`uint8_t` are identical. This change is only about code readability.
* Zend/zend_enum: make `forbidden_methods` static+const
* main/php_syslog: make `xdigits` static
* sapi/fpm: make several globals `const`
* sapi/phpdbg: make `OPTIONS` static
* sapi/phpdbg/help: make help texts const
* sapi/cli: make `template_map` const
* ext/ffi: make `zend_ffi_types` static
* ext/bcmath: make `ref_str` const
* ext/phar: make several globals static+const
(And any PECLs returning `zend_empty_array` in the handler->get_properties
overrides)
Closes GH-9697
This is similar to the fix used in d9651a9419
for array_walk.
This should make it safer for php-src (and PECLs, long-term) to return
the empty immutable array in `handler->get_properties` to avoid wasting memory.
See https://github.com/php/php-src/issues/9697#issuecomment-1273613175
The only possible internal iterator position for the empty array is at the end
of the empty array (nInternalPointer=0).
The `zend_hash*del*` helpers will always set nInternalPointer to 0 when an
array becomes empty,
regardless of previous insertions/deletions/updates to the array.
When a uint8_t is bitshifted to the left, it is actually promoted to an
int. For the current code this has the effect of a wrong sign-extension,
and the result will also wrongly become zero when insert_pos >= 32.
Fix this by adding an explicit cast.
Furthermore, the partial prefix byte mask was computed incorrectly: the
byte is already shifted so the mask should not account for the shift.
This reverts commit 94ee4f9834.
The commit was a bit too late to be included in PHP 8.2 RC1. Given it's a massive ABI break, we decide to postpone the change to PHP 8.3.
Using php_info_print_table_header() for "Foo: bar" looks odd and out of place,
because the whole line is colored. It is also questionable from a HTML
semantics point of view, because it does not described the columns that follow.
The use of this across extensions is inconsistent. It was part of the skeleton,
but ext/date or ext/json already use a regular row.
@cname currently refers to the constant name in C. However, it is not always a (constant) name, but sometimes a function invocation, so naming it as @cvalue would be more appropriate.
Casting from pointer to array is special, so we must not fall back to
the general FFI casting. There is a particular issue regarding the
size comparison, namely that the pointer size is always 8 for 64bit
architectures, but the size of an array is determined by its
declaration, so as is casting a pointer to an array with more than 8
elements would fail, but casting to an array with less than 9 elements
succeeds, but the internal pointer would point to some arbitrary
memory.
We fix this by properly supporting the cast. An alternative would be
to deny this kind of cast generally, since it is not necessarily safe.
However, FFI isn't necessarily safe anyway.
We also check pointer/array type compatibility when casting.
Co-authored-by: Dmitry Stogov <dmitry@zend.com>
Closes GH-7876.
- for packed arrays we store just an array of zvals without keys.
- the elements of packed array are accessible throuf as ht->arPacked[i]
instead of ht->arData[i]
- in addition to general ZEND_HASH_FOREACH_* macros, we introduced similar
familied for packed (ZEND_HASH_PACKED_FORECH_*) and real hashes
(ZEND_HASH_MAP_FOREACH_*)
- introduced an additional family of macros to access elements of array
(packed or real hashes) ZEND_ARRAY_ELEMET_SIZE, ZEND_ARRAY_ELEMET_EX,
ZEND_ARRAY_ELEMET, ZEND_ARRAY_NEXT_ELEMENT, ZEND_ARRAY_PREV_ELEMENT
- zend_hash_minmax() prototype was changed to compare only values
Because of smaller data set, this patch may show performance improvement
on some apps and benchmarks that use packed arrays. (~1% on PHP-Parser)
TODO:
- sapi/phpdbg needs special support for packed arrays (WATCH_ON_BUCKET).
- zend_hash_sort_ex() may require converting packed arrays to hash.
By convention, parameter names of camel case methods should also
be camel case, i.e. the name should be $fieldName rather than
$field_name.
However, following GH-7236, which changed $arg_index to just $index,
this also changes $field_name to just $name. The fact that it is
a field name is obvious from context.
PHP is already already using "Parameter" instead of "Argument" for reflection on types elsewhere.
Parameter is used to refer to the function declarations
(AST_PARAM internally in the AST, ReflectionFunctionAbstract->getParameters(),
etc.)
Argument is used to refer to expressions passed to the functions by the caller
(ArgumentCountError, etc.).
(Error messages were also changed in php 8.x to refer to passing too many arguments to a
function)
Other languages use similar definitions,
e.g. https://developer.mozilla.org/en-US/docs/Glossary/Parameter
It's the same as (int) zend_atol() -- it doesn't try to do anything
integer size specific. Canonicalize to one function in preparation
for renaming zend_atol() to something less misleading.
FFI test is adjusted to use a zend_test function. It just calls
zend_atol() internally, but could really be anything.
Co-authored-by: Christoph M. Becker <cmbecker69@gmx.de>
1. Update: http://www.php.net/license/3_01.txt to https, as there is anyway server header "Location:" to https.
2. Update few license 3.0 to 3.01 as 3.0 states "php 5.1.1, 4.1.1, and earlier".
3. In some license comments is "at through the world-wide-web" while most is without "at", so deleted.
4. fixed indentation in some files before |
For rationale, see https://github.com/php/php-src/pull/6787
Make extension checks lowercase, add a special case for opcache
that has internal name not matching .so filename.
Extensions migrated in part 2:
* dom
* exif
* fileinfo
* ffi
