========================================
- Core:
- . 'void' can no longer be used as the name of a class, interface, or trait.
- This applies to declarations, class_alias() and use statements.
- . 'iterable' can no longer be used as the name of a class, interface, or
- trait. This applies to declarations, class_alias() and use statements.
- (RFC: https://wiki.php.net/rfc/iterable)
- . (int), intval() where $base is 10 or unspecified, settype(), decbin(),
- decoct(), dechex(), integer operators and other conversions now always
- respect scientific notation in numeric strings.
- (RFC: https://wiki.php.net/rfc/invalid_strings_in_arithmetic)
- . The ASCII 0x7F Delete control character is no longer permitted in unquoted
- identifiers in source code.
- . The following functions may no longer be called dynamically using $func(),
- call_user_func(), array_map() or similar:
- . extract()
- . compact()
- . get_defined_vars()
- . func_get_args()
- . func_get_arg()
- . func_num_args()
- . parse_str() with one argument
- . mb_parse_str() with one argument
- . assert() with a string argument
- (RFC: https://wiki.php.net/rfc/forbid_dynamic_scope_introspection)
- . If the error_log is set to syslog, the PHP error levels are mapped to the
- syslog error levels. This brings finer differentiation in the error logs
- in contrary to the previous approach where all the errors are loggged with
- the notice level only.
- . Don't call destructors of incompletely constructed objects, even if they
- are kept referenced. See bug #29368 and Zend/tests/bug29368_1.phpt.
- . rand() and srand() are now aliases of mt_rand() and mt_srand().
- Consequently the output of the following functions has changed:
- . rand()
- . shuffle()
- . str_shuffle()
- . array_rand()
- . Fixes to random number generators mean that mt_rand() now produces a
- different sequence of outputs to previous versions. If you relied on
- mt_srand() to produce a deterministic sequence, it can be called using
- mt_srand($seed, MT_RAND_PHP) to produce old the sequences.
-
-- JSON:
- . The serialize_precision is used instead of precision when encoding double
- values.
- . An empty key is decoded as an empty property name instead of using _empty_
- property name when decoding object to stdClass.
- . When calling json_encode with JSON_UNESCAPED_UNICODE option, U+2028 and
- U+2029 are escaped.
-
-- mbstring:
- . mb_ereg() and mb_eregi() will now set the $regs argument to an empty array,
- if nothing matched. Formerly, $regs was not modified in that case.
-
-- OpenSSL:
- . Dropped sslv2 stream.
========================================
2. New Features
========================================
-- Core
- . Added void return type, which requires that a function not return a value.
- (RFC: https://wiki.php.net/rfc/void_return_type)
- . Added iterable pseudo-type accepting any array or object implementing
- Traversable.
- (RFC: https://wiki.php.net/rfc/iterable)
- . String offset access now supports negative references, which will be
- counted from the end of the string.
- (RFC: https://wiki.php.net/rfc/negative-string-offsets)
- . Added a form of the list() construct where keys can be specified.
- (RFC: https://wiki.php.net/rfc/list_keys)
- . Added [] = as alternative construct to list() =.
- (RFC: https://wiki.php.net/rfc/short_list_syntax)
- . Number operators taking numeric strings now emit "A non well formed numeric
- value encountered" E_NOTICEs for leading-numeric strings, and "A
- non-numeric value encountered" E_WARNINGs for non-numeric strings.
- This always applies to the +, -, *, /, **, %, << and >> operators, and
- their assignment counterparts +=, -=, *=, /=, **=, %=, <<= and >>=.
- For the bitwise operators |, & and ^, and their assignment counterparts
- |=, &= and ^=, this only applies where only one operand is a string.
- Note that this never applies to the bitwise NOT operator, ~, which does not
- handle numeric strings, nor to the increment and decrement operators
- ++ and --, which have a unique approach to handling numeric strings.
- (RFC: https://wiki.php.net/rfc/invalid_strings_in_arithmetic)
- . Closure::fromCallable (RFC: https://wiki.php.net/rfc/closurefromcallable)
========================================
3. Changes in SAPI modules
========================================
-- apache2handler:
- . Implemented per module logging.
- . Implemented error level mapping between PHP and Apache for the error logs.
========================================
4. Deprecated Functionality
========================================
-- 'e' option of mb_ereg_replace() and mb_eregi_replace().
-- ext/mcrypt is now fully deprecated.
-
========================================
5. Changed Functions
========================================
-- get_headers() has an extra parameter which allows passing a custom stream
- context.
-- The first $varname argument for getenv() is no longer mandatory, the
- current environment variables will be returned as an associative array
- when omitted.
-- json_encode() accepts new option JSON_UNESCAPED_LINE_TERMINATORS that
- disables escaping of U+2028 and U+2029 characters when
- JSON_UNESCAPED_UNICODE is supplied.
-- long2ip() accepts integer as parameter now
-- pg_last_notice() accepts optional long parameter to specify operation.
- PGSQL_NOTICE_LAST - Get last notice (Default)
- PGSQL_NOTICE_ALL - Get all stored notices
- PGSQL_NOTICE_CLEAR - Remove all stored notices
- It returns empty string or array on successful PGSQL_NOTICE_LAST/ALL calls.
- It returned FALSE for empty notice previously.
-- pg_fetch_all() accepts 2nd optional result type parameter like
- pg_fetch_row().
-- pg_select() accepts 4th optional result type parameter like pg_fetch_row().
-- parse_url() is more restrictive now and supports RFC3986.
-- unpack() accepts an additional optional $offset argument. '@' format code
- (that specifes an absolute position) is applyed to input data after
- the $offset argument.
-- strpos(), stripos(), substr_count(), grapheme_strpos(), grapheme_stripos(),
- grapheme_extract(), iconv_strpos(), mb_strimwidth(), mb_ereg_search_setpos(),
- mb_strpos() and mb_stripos() now accept negative string offsets.
-- substr_count() and mb_strimwidth() additionally also accept negative length.
-- file_get_contents() accepts a negative seek offset if the stream is seekable.
-- tempnam() throws a notice when failing back to the system temp dir.
-- getopt() has an extra by-ref parameter : optind
-- mb_ereg() and mb_ereg_replace() reject illegal byte sequences.
-- FILTER_FLAG_EMAIL_UNICODE can be used with filter_var() for email validation
- according to RFC 6531.
========================================
6. New Functions
========================================
-- Core:
- . Added sapi_windows_cp_set(), sapi_windows_cp_get(), sapi_windows_cp_is_utf8(),
- sapi_windows_cp_conv() for codepage handling.
-
-- pcntl:
- . Added pcntl_signal_get_handler() that returns the current signal handler
- for a particular signal.
- Mbstring:
. Added mb_chr() and mb_ord().
- . Added mb_scurb() that scrub broken mutilbyte strings.
-
-- Standard:
- . Added is_iterable() that determines if a value will be accepted by the new
- iterable pseudo-type.
+ . Added mb_scurb() that scrub broken multibyte strings.
========================================
7. New Classes and Interfaces
9. Other Changes to Extensions
========================================
-- Date:
- . Invalid serialization data for a DateTime or DatePeriod object will now
- throw an instance of Error from __wakeup() or __set_state() instead of
- resulting in a fatal error.
- . Timezone initialization failure from serialized data will now throw an
- instance of Error from __wakeup() or __set_state() instead of resulting in
- a fatal error.
-
-- DBA:
- . Data modification functions (e.g.: dba_insert()) now throw an instance of
- Error instead of triggering a catchable fatal error if the key is does not
- contain exactly two elements.
-
-- DOM:
- . Invalid schema or RelaxNG validation contexts will throw an instance of
- Error instead of resulting in a fatal error.
- . Attempting to register a node class that does not extend the appropriate
- base class will now throw an instance of Error instead of resulting in a
- fatal error.
- . Attempting to read an invalid or write to a readonly property will throw
- an instance of Error instead of resulting in a fatal error.
-
- EXIF:
. Added extended exif tag support for the following formats:
Samsung, DJI, Panasonic, Sony, Pentax, Minolta & Sigma/Foveon.
-- GD:
- . Changed the default of the ini setting gd.jpeg_ignore_warning to 1.
-
-- IMAP:
- . An email address longer than 16385 bytes will throw an instance of Error
- instead of resulting in a fatal error.
-
-- Intl:
- . Failure to call the parent constructor in a class extending Collator
- before invoking the parent methods will throw an instance of Error
- instead of resulting in a recoverable fatal error.
- . Cloning a Transliterator object may will now throw an instance of Error
- instead of resulting in a fatal error if cloning the internal
- transliterator fails.
-
-- LDAP:
- . Providing an unknown modification type to ldap_batch_modify() will now
- throw an instance of Error instead of resulting in a fatal error.
-
-- Mbstring:
- . mb_ereg() and mb_eregi() will now throw an instance of ParseError if an
- invalid PHP expression is provided and the 'e' option is used.
-
-- Mcrypt:
- . mcrypt_encrypt() and mcrypt_decrypt() will throw an instance of Error
- instead of resulting in a fatal error if mcrypt cannot be initialized.
-
-- Mysqli:
- . Attempting to read an invalid or write to a readonly property will throw
- an instance of Error instead of resulting in a fatal error.
-
-- Reflection:
- . Failure to retrieve a reflection object or retrieve an object property
- will now throw an instance of Error instead of resulting in a fatal error.
-
-- Session:
- . Custom session handlers that do not return strings for session IDs will
- now throw an instance of Error instead of resulting in a fatal error
- when a function is called that must generate a session ID.
- . An invalid setting for session.hash_function will throw an instance of
- Error instead of resulting in a fatal error when a session ID is created.
-
-- SimpleXML:
- . Creating an unnamed or duplicate attribute will throw an instance of Error
- instead of resulting in a fatal error.
-
-- SPL:
- . Attempting to clone an SplDirectory object will throw an instance of Error
- instead of resulting in a fatal error.
- . Calling ArrayIterator::append() when iterating over an object will throw an
- instance of Error instead of resulting in a fatal error.
-
-- SQLite3:
- . Upgraded bundled SQLite lib to 3.13.0
-
-- Standard:
- . assert() will throw a ParseError when evaluating a string given as the first
- argument if the PHP code is invalid instead of resulting in a catchable
- fatal error.
- . Calling forward_static_call() outside of a class scope will now throw an
- instance of Error instead of resulting in a fatal error.
-
-- Tidy:
- . Creating a tidyNode manually will now throw an instance of Error instead of
- resulting in a fatal error.
-
-- WDDX:
- . A circular reference when serializing will now throw an instance of Error
- instead of resulting in a fatal error.
-
-- XML-RPC:
- . A circular reference when serializing will now throw an instance of Error
- instead of resulting in a fatal error.
-
-- Zip:
- . ZipArchive::addGlob() will throw an instance of Error instead of resulting
- in a fatal error if glob support is not available.
-
========================================
10. New Global Constants
========================================
-- Core:
- . PHP_FD_SETSIZE
-
-- JSON:
- . JSON_UNESCAPED_LINE_TERMINATORS
-
-- Pgsql:
- PGSQL_NOTICE_LAST
- PGSQL_NOTICE_ALL
- PGSQL_NOTICE_CLEAR
-
========================================
11. Changes to INI File Handling
========================================
-- serialize_precision
- . If the value is set to -1, then the dtoa mode 0 is used. The value -1
- is now used by default.
-
-- precision
- . If the value is set to -1, then the dtoa mode 0 is used. No changes
- in default value which is still 14.
-
- sql.safe_mode
. This INI directive have been removed.
12. Windows Support
========================================
-- Core:
- . Support for long and UTF-8 path;
-
- If an application is UTF-8 conforming, no further action is required. For
- applications depending on paths in non UTF-8 encodings for I/O, an explicit
- INI directive has to be set. The encoding INI settings check relies on the
- order in the core:
- - internal_encoding
- - default_charset
- - zend.multibyte
-
- Several functions for codepage handling were introduced:
- - sapi_windows_cp_set() to set the default codepage
- - sapi_windows_cp_get() to retrieve the current codepage
- - sapi_windows_cp_is_utf8()
- - sapi_windows_cp_conv() to convert between codepages, using iconv()
- compatible signature
- These functions are thread safe.
-
- The console output codepage is adjusted depending on the encoding used in
- PHP. Depending on the concrete system OEM codepage, the visible output
- might or might be not correct. For example, in the default cmd.exe and on
- a system with the OEM codepage 437, outputs in codepages 1251, 1252, 1253
- and some others can be shown correctly when using UTF-8. On the same system,
- chars in codepage like 20932 probably won't be shown correctly. This refers
- to the particular system rules for codepage, font compatibility and the
- particular console program used. PHP automatically sets the console codepage
- according to the encoding rules from php.ini. Using alternative consoles
- instead of cmd.exe directly might bring better experience in some cases.
- Nevertheless be aware, runtime codepage switch after the request start
- might bring unexpected side effects on CLI. The preferrable way is php.ini.
-
- As a result of UTF-8 support in the streams, PHP scripts are not limited
- to ASCII or ANSI filenames anymore. This is supported out of the box on
- CLI. For other SAPI, the documentation for the corresponding server
- is useful.
-
- Long paths support is transparent. Paths longer than 260 bytes get
- automatically prefixed with \\?\. The max path length is limited to
- 2048 bytes. Be aware, that the path segment limit (basename length) still
- persists.
-
- The recommended way to handle file paths, I/O and other related topics is
- by utilizing UTF-8.
-
- . Support for ftok()
-
- . PHP on Windows now ensures that the correct version of the Winsock
- library is loaded and will error out in case Winsock 2.0 is not found
- on the system.
-
-- FCGI
- . PHP_FCGI_CHILDREN is respected. If this environment variable is defined,
- the first php-fcgi.exe process will exec the specified number of children.
- Those will share the same TCP socket.
-
-- readline:
- . The readline extension is supported through the WinEditLine library
- (http://mingweditline.sourceforge.net/). Thereby, the interactive CLI
- shell is supported as well (php.exe -a).
-
- It is well known, but nevertheless is worth mentioning again, that
- the readline extension is not thread safe and will never be. Thus,
- the usage of it with any true thread safe SAPI (like Apache mod_winnt) is
- strongely discouraged.
-
========================================
13. Other Changes
========================================
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