7. Deprecated
8. Removed
9. Extensions:
- a. moved out to PECL and actively maintained there
- b. no longer maintained
- c. with changed behaviour
- d. no longer possible to disable
+ a. with changed behaviour
+ b. no longer possible to disable
10. Changes in SAPI support
11. Changes in INI directives
12. Syntax additions
13. Windows support
14. New in PHP 5.4:
- a. New libraries
- b. New extensions
- c. New stream wrappers
- d. New stream filters
- e. New functions
- f. New global constants
- g. New classes
- h. New methods
- i. New class constants
- j. New hash algorithms
- k. New Syntax
+ a. New functions
+ b. New global constants
+ c. New classes
+ d. New methods
+ e. New class constants
+ f. New hash algorithms
========================================
1. Changes made to default configuration
2. Reserved words and classes
=============================
-- "trait" is a reserved word now
+- "trait" and "insteadof" are reserved words now.
===================================
3. Changes made to engine behaviour
===================================
+- Changed E_ALL to include E_STRICT.
+
+- Closures now support scopes and $this and can be rebound to
+ objects using Closure::bind() and Closure::bindTo().
+
- Turning null, false or empty string into an object by adding a property
will now emit a warning instead of an E_STRICT error.
names, thereby shadowing the corresponding superglobal. This now causes a
fatal error such as "Cannot re-assign auto-global variable GLOBALS".
+- Converting array to string now will cause E_NOTICE warning.
+
+- Added multibyte support by default. Now it can be enabled or disabled through
+ zend.multibyte directive in php.ini.
+
+- <?= is now always available regardless of the short_open_tag setting.
+
+- Parse error messages are changed to contain more information about the error.
+
=====================================
4. Changes made to existing functions
=====================================
- fclose() closes streams with resource refcount > 1; it doesn't merely
decrement the resource refcount.
- socket_set_options() and socket_get_options() now support multicast options.
-- Arrays cast from SimpleXMLElement now always contain all nodes instead of
- just the first matching node.
-- All SimpleXMLElement children are now always printed when using var_dump(),
- var_export(), and print_r().
- The raw data parameter in openssl_encrypt()/openssl_decrypt() is now an options
integer rather than a boolean. A value of true produces the same behaviour.
- Write operations within XSLT (for example with the extension sax:output) are
disabled by default. You can define what is forbidden with the method
- XsltProcess::setSecurityPrefs($options)
+ XsltProcess::setSecurityPrefs($options).
+- Added AES support to OpenSSL.
- openssl_csr_new() expects the textual data to be in UTF-8.
+- Added no padding option to openssl_encrypt()/openssl_decrypt().
+- Added a "no_ticket" SSL context option to disable the SessionTicket TLS
+ extension.
+- Added new json_encode() options: JSON_PRETTY_PRINT, JSON_UNESCAPED_SLASHES,
+ JSON_NUMERIC_CHECK, JSON_BIGINT_AS_STRING, JSON_UNESCAPED_UNICODE.
+- Added Tokyo Cabinet and Berkley DB 5 support to DBA extension.
+- Added support for CURLOPT_MAX_SEND_SPEED_LARGE and CURLOPT_MAX_RECV_SPEED_LARGE
+ to cURL.
+- Added optional argument to debug_backtrace() and debug_print_backtrace()
+ to limit the amount of stack frames returned.
+- Fixed crypt_blowfish handling of 8-bit characters. crypt() in Blowfish mode now
+ supports hashes marked $2a$, $2x$, $2y$ and $2z$.
+- mbstring now supports following encodings: Shift_JIS/UTF-8 Emoji,
+ JIS X0213:2004 (Shift_JIS-2004, EUC-JP-2004, ISO-2022-JP-2004),
+ MacJapanese (Shift_JIS), gb18030.
+- Added encode/decode in hex format to mb_[en|de]code_numericentity().
+- Added support for SORT_NATURAL and SORT_FLAG_CASE in array sort functions
+ (sort, rsort, ksort, krsort, asort, arsort and array_multisort).
===================================
5. Changes made to existing methods
===================================
--
+- DateTime::parseFromFormat() now has + modifier to allow trailing text in
+ the string to parse without throwing an error.
+- Added the ability to pass options to DOMDocument::loadHTML().
+- FilesystemIterator, GlobIterator and (Recursive)DirectoryIterator now use
+ the default stream context.
===================================
6. Changes made to existing classes
object is constructed.
- Classes that implement stream wrappers can define a method called stream_metadata that
will be called on touch(), chmod(), chgrp(), chown().
-
-
+- Arrays cast from SimpleXMLElement now always contain all nodes instead of
+ just the first matching node.
+- All SimpleXMLElement children are now always printed when using var_dump(),
+ var_export(), and print_r().
+- Added iterator support in MySQLi. mysqli_result implements Traversable.
=============
7. Deprecated
=============
+- get_magic_quotes_gpc()
+- get_magic_quotes_runtime()
+- mcrypt_generic_end()
+- mysql_list_dbs()
+
==========
8. Removed
==========
9. Extensions
=============
- a. moved out to PECL and actively maintained there
-
- -
-
- b. no longer maintained
+ a. no longer maintained
- ext/sqlite
- c. with changed behaviour
+ b. with changed behaviour
- The MySQL extensions (ext/mysql, mysqli and PDO_mysql) use mysqlnd
as the default library now. It is still possible to use libmysql by
specifying a path to the configure options.
+ - PDO_mysql: Support for linking with MySQL client libraries older
+ than 4.1 is removed.
- The session extension now can hook into the file upload feature
in order to provide upload progress information through session
variables.
is set with date.timezone and/or date_default_timezone_set().
Instead it will always fall back to "UTC".
- d. no longer possible to disable
-
- -
-
==========================
10. Changes in SAPI support
==========================
+- Added built-in CLI web server that is intended for testing purposes.
- The REQUEST_TIME value inside server now returns a floating point number
indicating the time with microsecond precision. All SAPIs providing this
value should be returning float and not time_t.
+- apache_child_terminate(), getallheaders(), apache_request_headers()
+ and apache_response_headers() now supported on FastCGI.
+- Added shortcut #inisetting=value to change ini settings at run-time.
+- Changed shell not to terminate on fatal errors.
+- Interactive shell works with shared readline extension.
+- Added command line option --rz <name> which shows information of the
+ named Zend extension.
+- PHP-FPM now supports syslog value for error_log.
=============================
11. Changes in INI directives
=============================
+- Recommended production value for error_reporting changed to
+ E_ALL & ~E_DEPRECATED & ~E_STRICT.
- Added session.upload_progress.enabled, session.upload_progress.cleanup,
session.upload_progress.prefix, session.upload_progress.name,
session.upload_progress.freq, session.upload_progress.min_freq.
raw POST data in multipart requests and read/process the POST data in a
stream fashion (through php://input), without having it copied in memory two/
three times.
-- Changed E_ALL to include E_STRICT. Recommended production value changed to
- E_ALL & ~E_DEPRECATED & ~E_STRICT.
-- a new directive, called windows_show_crt_warning, has been introduced.
+- A new directive, called windows_show_crt_warning, has been introduced.
This directive shows the CRT warnings when enabled. These warnings were
displayed by default until now. It is disabled by default.
+- Added cli.pager php.ini setting to set a pager for CLI output.
+- Added cli.prompt php.ini setting to configure the CLI shell prompt.
+- Added process.max to control the number of process FPM can fork.
====================
12. Syntax additions
====================
-
-- Array dereferencing.
+- Traits:
+ trait HelloWorld {
+ public function sayHello() {
+ echo 'Hello World!';
+ }
+ }
+
+ class CanIGetHello {
+ use HelloWorld;
+ }
+
+ $hello = new CanIGetHello();
+ $hello->sayHello();
+
+- Function call result array access:
e.g.
foo()[0]
$foo->bar()[0]
$o = new ArrayObject();
foo(array($o, "count"));
+- Short array syntax:
+ $a = [1, 2, 3, 4];
+ $a = ['one' => 1, 'two' => 2, 'three' => 3, 'four' => 4];
+ $a = ['one' => 1, 2, 'three' => 3, 4];
+
+- Binary number format:
+ 0b00100 0b010101
+
+- $str[1][0] where $str is a string is now a legal construct.
+
+- Anonymous functions now support using $this and class scope.
+ Anonymous function can be declared as "static" to ignore the scope.
+
+- Class::{expr}() syntax is now supported:
+ class A {
+ static function foo() {
+ echo "Hello world!\n";
+ }
+ }
+ $x = "f";
+ $y = "o";
+ A::{$x.$y.$y}();
+
+
===================
13. Windows support
===================
14. New in PHP 5.4:
===================
- a. New libraries
-
- -
-
- b. New extensions
-
- -
-
- c. New stream wrappers
-
- -
-
- d. New stream filters
-
- -
-
- e. New functions
+ a. New functions
- Core:
- get_declared_traits()
+ - getimagesizefromstring()
- hex2bin()
+ - header_register_callback()
- http_response_code()
- stream_set_chunk_size()
- socket_import_stream()
- trait_exists()
+ - Intl:
+ - transliterator_create()
+ - transliterator_create_from_rules()
+ - transliterator_create_inverse()
+ - transliterator_get_error_code()
+ - transliterator_get_error_message()
+ - transliterator_list_ids()
+ - transliterator_transliterate()
+
- LDAP:
- ldap_control_paged_results()
- ldap_control_paged_results_response()
- - libxml
+ - libxml:
- libxml_set_external_entity_loader()
-
- f. New global constants
-
+
+ - mysqli:
+ - mysqli_error_list()
+ - mysqli_stmt_error_list()
+
+ - Session:
+ - session_register_shutdown()
+ - session_status()
+
+ - SPL
+ - class_uses()
+
+ b. New global constants
+
+ - CURLOPT_MAX_RECV_SPEED_LARGE
+ - CURLOPT_MAX_SEND_SPEED_LARGE
+ - ENT_DISALLOWED
+ - ENT_HTML401
+ - ENT_HTML5
+ - ENT_SUBSTITUTE
+ - ENT_XHTML
+ - ENT_XML1
+ - IPPROTO_IP
+ - IPPROTO_IPV6
+ - IPV6_MULTICAST_HOPS
+ - IPV6_MULTICAST_IF
+ - IPV6_MULTICAST_LOOP
+ - IP_MULTICAST_IF
+ - IP_MULTICAST_LOOP
+ - IP_MULTICAST_TTL
+ - JSON_BIGINT_AS_STRING
+ - JSON_OBJECT_AS_ARRAY
- JSON_PRETTY_PRINT
- JSON_UNESCAPED_SLASHES
- - ENT_SUBSTITUTE
- - ENT_ALLOWED
- - ENT_HTML401
- - ENT_XML1
- - ENT_XHTML
- - ENT_HTML5
- - SCANDIR_SORT_ASCENDING
- - SCANDIR_SORT_DESCENDING
- - SCANDIR_SORT_NONE
+ - JSON_UNESCAPED_UNICODE
+ - LIBXML_HTML_NODEFDTD
+ - LIBXML_HTML_NOIMPLIED
+ - LIBXML_PEDANTIC
- MCAST_JOIN_GROUP
- MCAST_LEAVE_GROUP
- MCAST_BLOCK_SOURCE
- MCAST_UNBLOCK_SOURCE
- MCAST_JOIN_SOURCE_GROUP
- MCAST_LEAVE_SOURCE_GROUP
- - IP_MULTICAST_IF
- - IP_MULTICAST_TTL
- - IP_MULTICAST_LOOP
- - IPV6_MULTICAST_IF
- - IPV6_MULTICAST_HOPS
- - IPV6_MULTICAST_LOOP
- - IPPROTO_IP
- - IPPROTO_IPV6
+ - OPENSSL_CIPHER_AES_128_CBC
+ - OPENSSL_CIPHER_AES_192_CBC
+ - OPENSSL_CIPHER_AES_256_CBC
- OPENSSL_RAW_DATA
- OPENSSL_ZERO_PADDING
-
- g. New classes
+ - PHP_OUTPUT_HANDLER_CLEAN
+ - PHP_OUTPUT_HANDLER_CLEANABLE
+ - PHP_OUTPUT_HANDLER_DISABLED
+ - PHP_OUTPUT_HANDLER_FINAL
+ - PHP_OUTPUT_HANDLER_FLUSH
+ - PHP_OUTPUT_HANDLER_FLUSHABLE
+ - PHP_OUTPUT_HANDLER_REMOVABLE
+ - PHP_OUTPUT_HANDLER_STARTED
+ - PHP_OUTPUT_HANDLER_STDFLAGS
+ - PHP_OUTPUT_HANDLER_WRITE
+ - PHP_QUERY_RFC1738
+ - PHP_QUERY_RFC3986
+ - PHP_SESSION_ACTIVE
+ - PHP_SESSION_DISABLED
+ - PHP_SESSION_NONE
+ - SCANDIR_SORT_ASCENDING
+ - SCANDIR_SORT_DESCENDING
+ - SCANDIR_SORT_NONE
+ - SORT_FLAG_CASE
+ - SORT_NATURAL
+ - STREAM_META_ACCESS
+ - STREAM_META_GROUP
+ - STREAM_META_GROUP_NAME
+ - STREAM_META_OWNER
+ - STREAM_META_OWNER_NAME
+ - STREAM_META_TOUCH
+ - T_CALLABLE
+ - T_INSTEADOF
+ - T_TRAIT
+ - T_TRAIT_C
+ - ZLIB_ENCODING_DEFLATE
+ - ZLIB_ENCODING_GZIP
+ - ZLIB_ENCODING_RAW
+
+ c. New classes
- Reflection:
- ReflectionZendExtension
- Intl:
- Transliterator
+ - Spoofchecker
+ - JSON:
+ - JsonSerializable
+
+ - Session:
+ - SessionHandler
+
- SNMP:
- SNMP
- CallbackFilterIterator
- RecursiveCallbackFilterIterator
- h. New methods
+ d. New methods
- - DirectoryIterator
- - DirectoryIterator::getExtension()
+ - Closure:
+ - Closure::bind()
+ - Closure::bindTo()
- Reflection:
- - ReflectionClass::isCloneable()
- - ReflectionClass::getTraits()
- - ReflectionClass::getTraitNames()
- ReflectionClass::getTraitAliases()
+ - ReflectionClass::getTraitNames()
+ - ReflectionClass::getTraits()
+ - ReflectionClass::isCloneable()
+ - ReflectionClass::isTrait()
+ - ReflectionClass::newInstanceWithoutConstructor()
+ - ReflectionExtension::isPersistent()
+ - ReflectionExtension::isTemporary()
+ - ReflectionFunction::getClosure()
+ - ReflectionFunction::getClosureScopeClass()
+ - ReflectionFunction::getClosureThis()
+ - ReflectionFunctionAbstract::getClosureScopeClass()
+ - ReflectionFunctionAbstract::getClosureThis()
+ - ReflectionMethod::getClosure()
+ - ReflectionMethod::getClosureScopeClass()
+ - ReflectionMethod::getClosureThis()
+ - ReflectionObject::getTraitAliases()
+ - ReflectionObject::getTraitNames()
+ - ReflectionObject::getTraits()
+ - ReflectionObject::isCloneable()
+ - ReflectionObject::isTrait()
+ - ReflectionObject::newInstanceWithoutConstructor()
- ReflectionParameter::canBePassedByValue()
- ReflectionParameter::isCallable()
-
- - RegexIterator
- - RegexIterator::getRegex()
- - PDO_dblib
+ - PDO_dblib:
- PDO::newRowset()
- - SplFileInfo
+ - SPL:
+ - DirectoryIterator::getExtension()
+ - RegexIterator::getRegex()
+ - SplDoublyLinkedList::serialize()
+ - SplDoublyLinkedList::unserialize()
- SplFileInfo::getExtension()
-
- - SplFileObject
- SplFileObject::fputcsv()
+ - SplObjectStorage::getHash()
+ - SplQueue::serialize
+ - SplQueue::unserialize
+ - SplStack::serialize
+ - SplStack::unserialize
+ - SplTempFileObject::fputcsv
+
+ - XSLT:
+ - XsltProcessor::setSecurityPrefs()
+ - XsltProcessor::getSecurityPrefs()
- i. New class constants
+ e. New class constants
- -
+ - PDO:
+ - PDO::MYSQL_ATTR_SSL_CA
+ - PDO::MYSQL_ATTR_SSL_CAPATH
+ - PDO::MYSQL_ATTR_SSL_CERT
+ - PDO::MYSQL_ATTR_SSL_CIPHER
+ - PDO::MYSQL_ATTR_SSL_KEY
- j. New Hash algorithms
+ f. New Hash algorithms
- fnv132
- fnv164
- joaat
+
+
+
- k. New Syntax
- - Short array syntax in 5.4.0
- $a = [1, 2, 3, 4];
- $a = ['one' => 1, 'two' => 2, 'three' => 3, 'four' => 4];
- $a = ['one' => 1, 2, 'three' => 3, 4];
-
- - Binary number format
- 0b00100 0b010101
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