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archived-php-src/UPGRADING
Tim Starling 605c0756c9 ext/zip: add ZipArchive::openString() method 
Fixes to GH-14078:

* Rename ZipArchive::openBuffer() to ::openString().
* For consistency with ::open(), return int|bool, don't throw an
  exception on error. Provide error information via existing properties
  and accessors.
* Fix memory leak when ::openString() is called but ::close() is not
  called. Add test.
* Fix memory leak when a call to ::open() is followed by a call to
  ::openString(). Add test.
* Let libzip own the source, don't call zip_source_keep().
* Share buffer handling with ZipArchive::addFromString().

Elsewhere:

* If there is an error from zip_close() during a call to
  ZipArchive::open(), emit a warning but proceed to open the archive,
  don't return early. Add test.
* When buffers are saved by ZipArchive::addFromString(), release them
  in ZipArchive::close() and ::open(), don't accumulate buffers until
  the free_obj handler is called.
* Factor out buffer handling and reuse it in ZipArchive::openString()

Closes GH-21205.
Closes GH-14078.

Co-authored-by: Soner Sayakci <s.sayakci@shopware.com>
Co-authored-by: Ghaith Olabi <24876890+Gaitholabi@users.noreply.github.com>
2026-03-14 15:03:36 +01:00

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PHP 8.6 UPGRADE NOTES
1. Backward Incompatible Changes
2. New Features
3. Changes in SAPI modules
4. Deprecated Functionality
5. Changed Functions
6. New Functions
7. New Classes and Interfaces
8. Removed Extensions and SAPIs
9. Other Changes to Extensions
10. New Global Constants
11. Changes to INI File Handling
12. Windows Support
13. Other Changes
14. Performance Improvements
========================================
1. Backward Incompatible Changes
========================================
- PCRE:
. preg_grep() now returns false instead of a partial array when a PCRE
execution error occurs (e.g. malformed UTF-8 input with the /u modifier).
This is consistent with other preg_* functions.
- Phar:
. Invalid values now throw in Phar::mungServer() instead of being silently
ignored.
- Session:
. A ValueError is not thrown if $name is a string containing null bytes in
session_module_name().
. session_encode() now returns an empty string instead of false for empty
sessions. It only returns false now when the session data could not be
encoded. This mainly happens with the default serialization handler
if a key contains the pipe | character.
. When session.lazy_write is enabled and a session handler implements
SessionUpdateTimestampHandlerInterface, sessions that were read as empty
and remain empty at write time will now trigger updateTimestamp() instead
of write(). Previously, write() was always called for empty sessions
because session_encode() returned false, bypassing the lazy_write
comparison. Custom session handlers that rely on write() being called
with empty data (e.g. to destroy the session) should implement the same
logic in their updateTimestamp() method.
- Standard:
. Invalid mode values now throw in array_filter() instead of being silently
defaulted to 0.
. Form feed (\f) is now added in the default trimmed characters of trim(),
rtrim() and ltrim(). RFC: https://wiki.php.net/rfc/trim_form_feed
========================================
2. New Features
========================================
- Core:
. It is now possible to use reference assign on WeakMap without the key
needing to be present beforehand.
- Fileinfo:
. finfo_file() now works with remote streams.
- Intl:
. Added IntlNumberRangeFormatter class to format an interval of two numbers
with a given skeleton, locale, IntlNumberRangeFormatter::COLLAPSE_AUTO,
IntlNumberRangeFormatter::COLLAPSE_NONE,
IntlNumberRangeFormatter::COLLAPSE_UNIT,
IntlNumberRangeFormatter::COLLAPSE_ALL collapse and
IntlNumberRangeFormatter::IDENTITY_FALLBACK_SINGLE_VALUE,
IntlNumberRangeFormatter::IDENTITY_FALLBACK_APPROXIMATELY_OR_SINGLE_VALUE,
IntlNumberRangeFormatter::IDENTITY_FALLBACK_APPROXIMATELY and
IntlNumberRangeFormatter::IDENTITY_FALLBACK_RANGE identity fallbacks.
It is supported from icu 63.
- JSON:
. Added extra info about error location to the JSON error messages returned
from json_last_error_msg() and JsonException message.
- Phar:
. Overriding the getMTime() and getPathname() methods of SplFileInfo now
influences the result of the phar buildFrom family of functions.
This makes it possible to override the timestamp and names of files.
- Streams:
. Added stream socket context option so_reuseaddr that allows disabling
address reuse (SO_REUSEADDR) and explicitly uses SO_EXCLUSIVEADDRUSE on
Windows.
. Added stream socket context options so_keepalive, tcp_keepidle,
tcp_keepintvl and tcp_keepcnt that allow setting socket keepalive
options.
. Allowed casting casting filtered streams as file descriptor for select.
========================================
3. Changes in SAPI modules
========================================
========================================
4. Deprecated Functionality
========================================
========================================
5. Changed Functions
========================================
- mysqli:
. The return structure of mysqli_get_charset() no longer contains
the undocumented "comment" element. The value of "charsetnr" is
now set to a constant 0 as this number was an implementation detail
that should not have been exposed to the public.
- OpenSSL:
. Output of openssl_x509_parse() contains criticalExtensions listing all
critical certificate extensions.
- PCNTL:
. pcntl_alarm() now throws a ValueError if the seconds argument is
lower than zero or greater than platform's UINT_MAX.
- Phar:
. Phar::mungServer() now supports reference values.
- Posix:
. posix_access() now throws a ValueError exception if the flags
argument is invalid.
. posix_mkfifo() now throws a ValueError exception if the permissions
argument is invalid.
- Sockets:
. socket_addrinfo_lookup() now has an additional optional argument $error
when not null, and on failure, gives the error code (one of the EAI_*
constants).
- Zip:
. ZipArchive::extractTo now raises a TypeError for the
files argument if one or more of the entries is not
a string.
========================================
6. New Functions
========================================
- Reflection:
. ReflectionConstant::inNamespace()
. Added ReflectionProperty::isReadable() and ReflectionProperty::isWritable().
RFC: https://wiki.php.net/rfc/isreadable-iswriteable
- Intl:
. `grapheme_strrev()` returns strrev for grapheme cluster unit.
RFC: https://wiki.php.net/rfc/grapheme_strrev
- Standard:
. `clamp()` returns the given value if in range, else return the nearest
bound.
RFC: https://wiki.php.net/rfc/clamp_v2
- Zip:
. Added ZipArchive::openString() method.
========================================
7. New Classes and Interfaces
========================================
========================================
8. Removed Extensions and SAPIs
========================================
========================================
9. Other Changes to Extensions
========================================
- Hash:
. The bundled version of xxHash was upgraded to 0.8.2.
- mysqli
. Added new constant MYSQLI_OPT_COMPRESS.
========================================
10. New Global Constants
========================================
- Sockets:
. TCP_USER_TIMEOUT (Linux only).
. AF_UNSPEC.
. EAI_BADFLAGS.
. EAI_NONAME.
. EAI_AGAIN.
. EAI_FAIL.
. EAI_NODATA.
. EAI_FAMILY.
. EAI_SOCKTYPE.
. EAI_SERVICE.
. EAI_ADDRFAMILY.
. EAI_SYSTEM.
. EAI_OVERFLOW
. EAI_INPROGRESS.
. EAI_CANCELED.
. EAI_NOTCANCELED.
. EAI_ALLDONE.
. EAI_INTR.
. EAI_IDN_ENCODE.
- Standard
. ARRAY_FILTER_USE_KEY.
========================================
11. Changes to INI File Handling
========================================
- Mysqli:
. mysqli.default_port now checks the validity of the value which should be
between 0 and 65535 included.
- Opcache:
. opcache.jit_debug accepts a new flag: ZEND_JIT_DEBUG_TRACE_EXIT_INFO_SRC.
When used along with ZEND_JIT_DEBUG_TRACE_EXIT_INFO, the source of exit
points is printed in exit info output, in debug builds.
- Mbstring:
. The mbstring.detect_order INI directive now updates the internal detection
order when changed at runtime via ini_set(). Previously, runtime changes
using ini_set() did not take effect for mb_detect_order(). Setting the
directive to NULL or an empty string at runtime now leaves the previously
configured detection order unchanged.
========================================
12. Windows Support
========================================
========================================
13. Other Changes
========================================
========================================
14. Performance Improvements
========================================
- Core:
. `printf()` using only `%s` and `%d` will be compiled into the equivalent
string interpolation, avoiding the overhead of a function call and
repeatedly parsing the format string.
. Arguments are now passed more efficiently to known constructors (e.g. when
using new self()).
. array_map() using a first-class callable or partial function application
callback will be compiled into the equivalent foreach-loop, avoiding the
creation of intermediate Closures, the overhead of calling userland
callbacks from internal functions and providing for better insight for the
JIT.
- DOM:
. Made splitText() faster and consume less memory.
- JSON:
. Improve performance of encoding arrays and objects.
- Standard:
. Improved performance of array_fill_keys().
. Improved performance of array_map() with multiple arrays passed.
. Improved performance of array_unshift().
. Improved performance of array_walk().
. Improved performance of intval('+0b...', 2) and intval('0b...', 2).
. Improved performance of str_split().
- Zip:
. Avoid string copies in ZipArchive::addFromString().
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