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1. Backward Incompatible Changes
2. New Features
2. Changes in SAPI modules
3. Deprecated Functionality
4. Changed Functions
5. New Functions
6. New Classes and Interfaces
7. Removed Extensions
8. Other Changes to Extensions
9. New Global Constants
10. Changes to INI File Handling
11. Windows Support
12. Other Changes
1. Backward Incompatible Changes
- Drop Windows XP and 2003 support. (Pierre)
- All internal case insensitivity handling for class, function and constant
names is done according to ASCII rules, current locale settings are ignored.
- self, parent & static keywords now are always case-insensitive (see bug
- php_logo_guid(), php_egg_logo_guid(), php_real_logo_guid() and
zend_logo_guid() have been removed
- Removal of Logo GUIDs
- extensions can't override zend_execute() any more, they should override
zend_execute_ex() instead. The EG(current_execute_data) is already
initialized in zend_execute_ex(), so for compatibility extensions
may need to use EG(current_execute_data)->prev_execute_data instead.
- removed EG(arg_types_stack), EX(fbc), EX(called_scope), EX(current_object)
- added op_array->nested_calls. It's calculated at compile time.
- added EX(call_slots). It is an array to store information about syntaticaly
nested calls (e.g. foo(bar())). It's preallocated together with execute_data.
- added EX(call) - pointer to a current calling function. Actually an
element of EX(call_slots)
an index in EX(call_slots)
- opcode ZEND_NEW uses extended_vallue as an index in EX(call_slots)
- opcoes ZEND_DO_FCALL and ZEND_DO_FCALL_BY_NAME use op2.num as
an index in EX(call_slots)
- added op_array->used_stack. It's calculated at compile time and the
corresponding stack space is preallocated together with execute_data.
ZEND_SEND* and ZEND_DO_FCALL* don't need to check for stack overflow
- Removed execute_data->Ts field. The VM temporary variables always allocated
immediately before execute_data structure. Now they are accessed by offset
from the execute_data base pointer (instead of execute_data->Ts). Compiler
stores new offsets in op_array->opcodes[*].op?.num. You can use macros
EX_TMP_VAR() and EX_TMP_VAR_NUM() to access temp_variable by offset or
number. You can convert number to offset using EX_TMP_VAR_NUM(0, num) or
offset to number (EX_TMP_VAR_NUM(0,0)-EX_TMP_VAR(0,offset)).
- Removed execute_data->CVs field. The VM compiled variables always allocated
immediately after execute_data structure. Now they are accessed by offset
from the execute_data base pointer (instead of execute_data->CVs). You can
use macros EX_CV_NUM() to access compiled variables by number.
2. New Features
- Support list in foreach. (Laruence)
- Support finally keyword. (Laruence)
- Support constant array/string dereferencing. (Laruence)
- Add support for using empty() on the result of function calls and
other expressions. Thus it is now possible to write empty(getArray()),
for example. (
- Added generators.
- ClassName::class syntax returning full class name for a class as
a string constant. (
2. Changes in SAPI modules
3. Deprecated Functionality
- The original MySQL extension is now deprecated, and will generate deprecation
warnings when connecting to a database through mysql_connect(),
mysql_pconnect() or by establishing an implicit connection. Use MySQLi or PDO
- The preg_replace /e modifier is now deprecated. Use
preg_replace_callback instead.
- IntlDateFormatter::setTimeZoneID() and datefmt_set_timezone_id() are
deprecated. Use IntlDateFormatter::setTimeZone() or datefmt_set_timezone()
- mcrypt_ecb(), mcrypt_cbc(), mcrypt_cfb() and mcrypt_ofb() now throw
E_DEPRECATED. Their use was already previously discouraged in the docs,
but that predated the existence of E_DEPRECATED.
4. Changed Functions
- pack()/unpack() had the following changes, which bring it more in line
with Perl's behavior:
- Implemented format character "Z": NULL padded string, with trailing NULL
bytes removed.
- Changed format character "a": this no longer removes trailing NULL bytes.
- Changed format character "A": all trailing ASCII whitespace is now removed
(defined as spaces, tabs, \r, \n and NULL).
- MessageFormatter::format() and related functions now accepted named arguments
and mixed numeric/named arguments in ICU 4.8+.
- MessageFormatter::format() and related functions now don't error out when
an insufficient argument count is provided. Instead, the placeholders will
remain unsubstituted.
- MessageFormatter::parse() and MessageFormat::format() (and their static
equivalents) now don't throw away better than second precision in the
- IntlDateFormatter::__construct and datefmt_create() now accept for the
$timezone argument time zone identifiers, IntlTimeZone objects, DateTimeZone
objects and NULL. It used to accept only time zone identifiers and NULL.
Invalid time zone identifiers are no longer accepted. Emptry strings are
no longer accepted.
- The default time zone used in IntlDateFormatter::__construct and
datefmt_create() (when the corresponding argument is not passed or NULL is
passed) is now the one given by date_default_timezone_get(), not the
default ICU time zone.
- The time zone passed to the IntlDateFormatter is ignored if it is NULL and if
the calendar passed is an IntlCalendar object -- in this case, the
IntlCalendar's time zone will be used instead. Otherwise, the time zone
specified in the $timezone argument is used instead. This does not affect
old code, as IntlCalendar was introduced in this version.
- IntlDateFormatter::__construct and datefmt_create() now accept for the
$calendar argument also IntlCalendar objects.
- IntlDateFormatter::getCalendar() and datefmt_get_calendar() return false
if the IntlDateFormatter was set up with an IntlCalendar instead of the
constants IntlDateFormatter::GREGORIAN/TRADITIONAL. IntlCalendar did not
exist before this version.
- IntlDateFormatter::setCalendar() and datefmt_set_calendar() now also accept
an IntlCalendar object, in which case its time zone is taken. Passing a
constant is still allowed, and still keeps the time zone.
- IntlDateFormatter::format() and datefmt_format() now also accept an
IntlCalendar object for formatting.
- php_logo_guid(), php_egg_logo_guid(), php_real_logo_guid() and
zend_logo_guid() have been removed
- set_error_handler(NULL) can now be used to reset the error handler.
Furthermore both set_error_handler(NULL) and set_exception_handler(NULL) will
now return the previously defined error/exception handler. Previously
bool(true) was returned.
- setcookie(), setrawcookie() and ext/session now send Max-Age headers alongside
Expires headers. (see
- curl_setopt now accepts new option CURLOPT_SAFE_UPLOAD and CURLFile object for
safer file uploads (see
- Functions in the socket extension now do not emit warnings when the errno is
5. New Functions
- Core:
- boolval()
- password_get_info()
- password_hash()
- password_needs_rehash()
- password_verify()
- cURL:
- curl_file_create
- GD
- imageflip
- imagecrop
- imagecropauto
- Hash:
- hash_pbkdf2()
- Intl:
- datefmt_format_object()
- datefmt_get_calendar_object()
- datefmt_get_timezone()
- datefmt_set_timezone()
- datefmt_get_calendar_object()
- intlcal_create_instance()
- intlcal_get_keyword_values_for_locale()
- intlcal_get_now()
- intlcal_get_available_locales()
- intlcal_get()
- intlcal_get_time()
- intlcal_set_time()
- intlcal_add()
- intlcal_set_time_zone()
- intlcal_after()
- intlcal_before()
- intlcal_set()
- intlcal_roll()
- intlcal_clear()
- intlcal_field_difference()
- intlcal_get_actual_maximum()
- intlcal_get_actual_minimum()
- intlcal_get_day_of_week_type()
- intlcal_get_first_day_of_week()
- intlcal_get_greatest_minimum()
- intlcal_get_least_maximum()
- intlcal_get_locale()
- intlcal_get_maximum()
- intlcal_get_minimal_days_in_first_week()
- intlcal_get_minimum()
- intlcal_get_time_zone()
- intlcal_get_type()
- intlcal_get_weekend_transition()
- intlcal_in_daylight_time()
- intlcal_is_equivalent_to()
- intlcal_is_lenient()
- intlcal_is_set()
- intlcal_is_weekend()
- intlcal_set_first_day_of_week()
- intlcal_set_lenient()
- intlcal_equals()
- intlcal_get_repeated_wall_time_option()
- intlcal_get_skipped_wall_time_option()
- intlcal_set_repeated_wall_time_option()
- intlcal_set_skipped_wall_time_option()
- intlcal_from_date_time()
- intlcal_to_date_time()
- intlcal_get_error_code()
- intlcal_get_error_message()
- intlgregcal_create_instance()
- intlgregcal_set_gregorian_change()
- intlgregcal_get_gregorian_change()
- intlgregcal_is_leap_year()
- intltz_create_time_zone()
- intltz_create_default()
- intltz_get_id()
- intltz_get_gmt()
- intltz_get_unknown()
- intltz_create_enumeration()
- intltz_count_equivalent_ids()
- intltz_create_time_zone_id_enumeration()
- intltz_get_canonical_id()
- intltz_get_region()
- intltz_get_tz_data_version()
- intltz_get_equivalent_id()
- intltz_use_daylight_time()
- intltz_get_offset()
- intltz_get_raw_offset()
- intltz_has_same_rules()
- intltz_get_display_name()
- intltz_get_dst_savings()
- intltz_from_date_time_zone()
- intltz_to_date_time_zone()
- intltz_get_error_code()
- intltz_get_error_message()
- IntlDateFormatter::formatObject()
- IntlDateFormatter::getCalendarObject()
- IntlDateFormatter::getTimeZone()
- IntlDateFormatter::setTimeZone()
- Sockets:
- socket_sendmsg()
- socket_recvmsg()
- socket_cmsg_space()
- SPL:
- SplFixedArray::__wakeup()
6. New Classes and Interfaces
- Intl:
- IntlCalendar
- IntlGregorianCalendar
- IntlTimeZone
- IntlBreakIterator
- IntlRuleBasedBreakIterator
- IntlCodePointBreakIterator
- UConverter
- cURL:
- CURLFile
7. Removed Extensions
8. Other Changes to Extensions
- Intl:
- This extension now requires ICU 4.0+.
9. New Global Constants
- mysqli:
- Added MYSQLI_SERVER_PUBLIC_KEY constant to be used with mysqli_options()
- cURL:
- Added CURLOPT_SAFE_UPLOAD to be used with curl_setopt().
- GD
- Added constants for imageflip:
- Added constants for imagecrop
10. Changes to INI File Handling
- Core:
- Added sys_temp_dir INI directive, for specifying temp firectory.
- Intl:
- Added intl.use_exceptions INI directive, which controls what happens when
global errors are set together with intl.error_level.
- mysqlnd:
- Added mysqlnd.sha256_server_public_key INI PERDIR setting that affects all
APIs which use(are built) for mysqlnd. This allows ext/mysqli to be used
with the new auth protocol, although at coarser level.
11. Windows Support
- Apache 2.4 handler is supported as of PHP 5.5.0
12. Other Changes
- Logo GUIDs will no longer work
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