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UPGRADING
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PHP 8.5 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
========================================
- BZ2:
. bzcompress() now throws a ValueError when $block_size is not between
1 and 9.
. bzcompress() now throws a ValueError when $work_factor is not between
0 and 250.
- Core:
. It is no longer possible to use "array" and "callable" as class alias names
in class_alias().
- Intl:
. The extension now requires at least ICU 57.1.
- LDAP:
. ldap_get_option() and ldap_set_option() now throw a ValueError when
passing an invalid option.
- SPL:
. ArrayObject no longer accepts enums, as modifying the $name or $value
properties can break engine assumptions.
========================================
2. New Features
========================================
- DOM:
. Added Dom\Element::$outerHTML.
- XSL:
. The $namespace argument of XSLTProcessor::getParameter(),
XSLTProcessor::setParameter() and XSLTProcessor::removeParameter()
now actually works instead of being treated as empty.
This only works if the $name argument does not use Clark notation
and is not a QName because in those cases the namespace is taken
from the namespace href or prefix respectively.
========================================
3. Changes in SAPI modules
========================================
========================================
4. Deprecated Functionality
========================================
- Hash:
The MHASH_* constants have been deprecated. These have been overlooked
when the mhash*() function family has been deprecated per
https://wiki.php.net/rfc/deprecations_php_8_1#mhash_function_family
========================================
5. Changed Functions
========================================
- Zlib:
. The "use_include_path" argument for the
gzfile, gzopen and readgzfile functions had been changed
from int to boolean.
- PDO_PGSQL:
. PDO::pgsqlCopyFromArray also supports inputs as Iterable.
. Pdo\Pgsql::setAttribute and Pdo\Pgsql::prepare supports
PDO::ATTR_PREFETCH sets to 0 which set to lazy fetch mode.
In this mode, statements cannot be run parallely.
- PGSQL:
. pg_copy_from also supports inputs as Iterable.
========================================
6. New Functions
========================================
- Curl:
. curl_multi_get_handles() allows retrieving all CurlHandles current
attached to a CurlMultiHandle. This includes both handles added using
curl_multi_add_handle() and handles accepted by CURLMOPT_PUSHFUNCTION.
- DOM:
. Added Dom\Element::insertAdjacentHTML().
- PGSQL:
. pg_close_stmt offers an alternative way to close a prepared
statement from the DEALLOCATE sql command in that we can reuse
its name afterwards.
- Reflection:
. ReflectionConstant::getFileName() was introduced.
. ReflectionConstant::getExtension() and
ReflectionConstant::getExtensionName() were introduced.
========================================
7. New Classes and Interfaces
========================================
========================================
8. Removed Extensions and SAPIs
========================================
========================================
9. Other Changes to Extensions
========================================
- Readline:
. The return types of readline_add_history(), readline_clear_history(), and
readline_callback_handler_install() have been changed to true, rather
than bool.
========================================
10. New Global Constants
========================================
- Core:
. PHP_BUILD_DATE.
- POSIX:
. POSIX_SC_OPEN_MAX.
- Sockets:
. IPPROTO_ICMP/IPPROTO_ICMPV6.
. TCP_FUNCTION_BLK (FreeBSD only).
========================================
11. Changes to INI File Handling
========================================
- Opcache:
. Added opcache.file_cache_read_only to support a read-only
opcache.file_cache directory, for use with read-only file systems
(e.g. read-only Docker containers).
Best used with opcache.validate_timestamps=0,
opcache.enable_file_override=1,
and opcache.file_cache_consistency_checks=0.
Note: A cache generated with a different build of PHP, a different file
path, or different settings (including which extensions are loaded), may be
ignored.
========================================
12. Windows Support
========================================
* The configuration variables PHP_VERSION, PHP_MINOR_VERSION, and
PHP_RELEASE_VERSION are now always numbers. Previously, they have been
strings for buildconf builds.
* COM:
. The extension is now build shared by default; previously it defaulted to a
static extension, although the official Windows binaries built a shared
extension.
* FFI:
. It is no longer necessary to specify the library when using FFI::cdef()
and FFI::load(). However, this convenience feature should not be used in
production.
========================================
13. Other Changes
========================================
========================================
14. Performance Improvements
========================================
- XMLWriter:
. Improved performance and reduce memory consumption.