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UPGRADING
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PHP 8.3 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
========================================
========================================
2. New Features
========================================
- Posix
. posix_getrlimit() now takes an optional $res parameter to allow fetching a
single resource limit.
========================================
3. Changes in SAPI modules
========================================
========================================
4. Deprecated Functionality
========================================
========================================
5. Changed Functions
========================================
- Core:
. gc_status() has added the following 4 fields:
"running" => bool
"protected" => bool
"full" => bool
"buffer_size" => int
See GH-9336
- Standard:
. E_NOTICEs emitted by unserialized() have been promoted to E_WARNING.
RFC: https://wiki.php.net/rfc/improve_unserialize_error_handling
========================================
6. New Functions
========================================
- JSON:
. Added json_validate(), which returns whether the json is valid for
the given $depth and $options.
- Posix:
. Added posix_sysconf call to get runtime informations.
- Sockets:
. Added socket_atmark to checks if the socket is OOB marked.
========================================
7. New Classes and Interfaces
========================================
========================================
8. Removed Extensions and SAPIs
========================================
========================================
9. Other Changes to Extensions
========================================
========================================
10. New Global Constants
========================================
- PCNTL:
. SIGINFO
- Posix:
. POSIX_SC_ARG_MAX
. POSIX_SC_PAGESIZE
. POSIX_SC_NPROCESSORS_CONF
. POSIX_SC_NPROCESSORS_ONLN
- Sockets:
. SO_ATTACH_REUSEPORT_CBPF (Linux only).
========================================
11. Changes to INI File Handling
========================================
========================================
12. Windows Support
========================================
========================================
13. Other Changes
========================================
- FFI:
. FFI::load() is now allowed during preloading when opcache.preload_user is the
current system user. Previously, calling FFI::load() was not possible during
preloading if the opcache.preload_user directive was set.
- Opcache:
. In the cli and phpdbg SAPIs, preloading does not require the
opcache.preload_user directive to be set anymore when running as root. In
other SAPIs, this directive is required when running as root because
preloading is done before the SAPI switches to an unprivileged user.
- Streams:
. Blocking fread() on socket connection returns immediately if there are
any buffered data instead of waiting for more data.
========================================
14. Performance Improvements
========================================