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+$Id$
+
+PHP 5.4 UPGRADE NOTES
+
+===========
+0. Contents
+===========
+
+1. Changes to INI directives
+2. Changes to reserved words and classes
+3. Changes to engine behavior
+4. Changes to existing functions
+5. Changes to existing classes
+6. Changes to existing methods
+7. Deprecated Functionality
+8. Removed Functionality
+     a. Removed features
+     b. Removed functions
+     c. Removed syntax
+     d. Removed hash algorithms
+9. Extension Changes:
+     a. Extensions no longer maintained
+     b. Extensions with changed behavior
+10. Changes in SAPI support
+11. Windows support
+12. New in PHP 5.4:
+     a. New features
+     b. Syntax additions
+     c. New functions
+     d. New global constants
+     e. New classes
+     f. New methods
+     g. New hash algorithms
+
+=============================
+1. Changes to INI directives
+=============================
+
+- PHP 5.4 now checks at compile time if /dev/urandom or /dev/arandom
+  are present. If either is available, session.entropy_file now
+  defaults to that file and session.entropy_length defaults to 32.
+  This provides non-blocking entropy to session id generation. If you
+  do not want extra entropy for your session ids, add:
+
+    session.entropy_file=
+    session.entropy_length=0
+
+  to your php.ini to preserve pre-PHP 5.4 behavior.
+
+- Deprecated php.ini directives will now throw an E_CORE_WARNING's
+  instead of the previous E_WARNING's.
+
+- The following php.ini directives are no longer available in PHP 5.4
+  and will now throw an E_CORE_ERROR upon startup:
+  - allow_call_time_pass_reference
+  - define_syslog_variables
+  - highlight.bg
+  - magic_quotes_gpc
+  - magic_quotes_runtime
+  - magic_quotes_sybase
+  - register_globals
+  - register_long_arrays
+  - safe_mode
+  - safe_mode_gid
+  - safe_mode_include_dir
+  - safe_mode_exec_dir
+  - safe_mode_allowed_env_vars
+  - safe_mode_protected_env_vars
+  - session.bug_compat_42
+  - session.bug_compat_warn
+  - y2k_compliance
+  - zend.ze1_compatibility_mode
+
+- the following new php.ini directives were added:
+  - max_input_vars - specifies how many GET/POST/COOKIE input
+    variables may be accepted. The default value is 1000.
+
+- E_ALL now includes E_STRICT.
+
+- The recommended production value for error_reporting changed to E_ALL &
+  ~E_DEPRECATED & ~E_STRICT.
+
+- Added new session support directives:
+    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
+
+- Added a zend.multibyte directive as a replacement of the PHP compile time
+  configuration option --enable-zend-multibyte. Now the Zend Engine always
+  contains code for multibyte support, which can be enabled or disabled at
+  runtime. Note: It doesn't make a lot of sense to enable this option if
+  ext/mbstring is not enabled, because most functionality is implemented by
+  mbstrings callbacks.
+
+- Added zend.script_encoding. This value will be used unless a
+  "declare(encoding=...)" directive appears at the top of the script.
+
+- Added zend.signal_check to check for replaced signal handlers on shutdown
+
+- Added enable_post_data_reading, which is enabled by default. When it's
+  disabled, the POST data is not read (or processed); the behavior is similar
+  to that of other request methods with body, like PUT. This allows reading
+  the raw POST data in multipart requests and reading/processing the POST data
+  in a stream fashion (through php://input) without having it copied in memory
+  multiple times.
+
+- Added windows_show_crt_warning. This directive shows the CRT warnings when
+  enabled. These warnings were displayed by default until now. It is disabled
+  by default.
+
+- Added cli.pager to set a pager for CLI interactive shell output.
+
+- Added cli.prompt to configure the CLI interactive shell prompt.
+
+- Added cli_server.color to enable the CLI web server to use ANSI color coding
+  in terminal output.
+
+========================================
+2. Changes to reserved words and classes
+========================================
+
+- "callable", "insteadof" and "trait" are now reserved words.
+
+=============================
+3. Changes to engine behavior
+=============================
+
+- The __construct arguments of an extended abstract constructor must
+  now match:
+
+  abstract class Base
+  {
+    abstract public function __construct();
+  }
+  class Foo extends Base
+  {
+    public function __construct($bar) {}
+  }
+
+  This now emits a Fatal error due the incompatible declaration.
+
+- In previous versions, superglobal names could be used for parameter
+  names, thereby shadowing the corresponding superglobal. In PHP 5.4
+  this now causes a fatal error such as "Cannot re-assign auto-global
+  variable GLOBALS".
+
+- Turning null, false or an empty string into an object by adding a
+  property will now emit a warning instead of an E_STRICT error.
+
+  $test = null;
+  $test->baz = 1;
+
+  To create a generic object you can use StdClass:
+
+  $test = new StdClass;
+  $test->baz = 1;
+
+- Converting an array to a string now will cause an E_NOTICE warning.
+
+- Non-numeric string offsets, e.g. $a['foo'] where $a is a string, now
+  return false on isset() and true on empty(), and produce warning if
+  trying to use them. Offsets of types double, bool and null produce
+  notice. Numeric strings ($a['2']) still work as before.
+
+  Note that offsets like '12.3' and '5 and a half' are considered
+  non-numeric and produce warning, but are converted to 12 and 5
+  respectively for backwards compatibility reasons.
+
+- Long numeric strings that do not fit in integer or double (such as
+  "92233720368547758070") are compared using string comparison if 
+  they could otherwise result in precision loss - since 5.4.4.
+
+- Closures now support scopes and $this and can be rebound to
+  objects using Closure::bind() and Closure::bindTo().
+
+- <?= is now always available regardless of the short_open_tag
+  setting.
+
+- Parse error messages are changed to contain more information about
+  the error.
+
+- __clone and __destruct since 5.4.4 follow the same scoping rules as 
+  the rest of the methods (see bug #61782 for details).
+
+================================
+4. Changes to existing functions
+================================
+
+- array_combine now returns array() instead of FALSE when two empty arrays are
+  provided as parameters.
+
+- dns_get_record() has an extra parameter which allows requesting DNS records
+  by numeric type and makes the result include only the raw data of the
+  response.
+
+- call_user_func_array() no longer allows call-time pass by reference.
+
+- the default character set for htmlspecialchars() and htmlentities() is
+  now UTF-8. In previous versions it was ISO-8859-1. Note that changing
+  your output charset via the php.ini default_charset directive does not
+  affect htmlspecialchars/htmlentities unless you are passing "" (an 
+  empty string) as the encoding parameter to your htmlspecialchars/htmlentities
+  calls. 
+
+- htmlentities() and htmlspecialchars() are stricter in the code units they
+  accept for the asian encodings. For Big5-HKSCS, the octets 0x80 and 0xFF are
+  rejected. For GB2312/EUC-CN, the octets 0x8E, 0x8F, 0xA0 and 0xFF are
+  rejected. For SJIS, the octets 0x80, 0xA0, 0xFD, 0xFE and 0xFF are rejected,
+  except maybe after a valid starting byte. For EUC-JP, the octets 0xA0 and
+  0xFF are rejected.
+
+- htmlentities() now emits an E_STRICT warning when used with asian characters,
+  as in that case htmlentities has (and already had before this version) the
+  same functionality as htmlspecialchars.
+
+- htmlentities() no longer numerically encodes high characters for single-byte
+  encodings (except when there's actually a corresponding named entity). This
+  behavior was not documented and was inconsistent with that for "UTF-8".
+
+- html_entity_decode() and htmlspecialchars_decode() behave more consistently,
+  now decoding entities in malformed strings such as "&&amp;" or "&#&amp;".
+
+- htmlentities(), htmlspecialchars(), html_entity_decode(), and
+  htmlspecialchars_decode: Added the flags ENT_HTML401, ENT_XML1, ENT_XHTML,
+  and ENT_HTML5. The behavior of these functions including, but not limited to,
+  the characters that are encoded and the entities that are decoded depend on
+  the document type that is specified by those flags.
+
+- htmlentities() and htmlspecialchars() with !$double_encode do more strict
+  checks on the validity of the entities. Numerical entities are checked for a
+  valid range (0 to 0x10FFFF); if the flag ENT_DISALLOWED is given, the
+  validity of such numerical entity in the target document type is also
+  checked. Named entities are checked for necessary existence in the target
+  document type instead of only checking whether they were constituted by
+  alphanumeric characters.
+
+- The flag ENT_DISALLOWED was added. In addition to the behavior described in
+  the item before, it also makes htmlentities() and htmlspecialchars()
+  substitute characters that appear literally in the argument string and which
+  are not allowed in the target document type with U+FFFD (UTF-8) or &#xFFFD;.
+
+- The flag ENT_SUBSTITUTE was added. This flag makes invalid multibyte
+  sequences be replaced by U+FFFD (UTF-8) or &#FFFD; by htmlspecialchars() and
+  htmlentities(). It is an alternative to the default behavior, which just
+  returns an empty string and to ENT_IGNORE, which is a security risk. The
+  behavior follows the recommendations of Unicode Technical Report #36.
+
+- htmlspecialchars_decode() and html_entity_decode() now decode &apos; if the
+  document type is ENT_XML1, ENT_XHTML, or ENT_HTML5.
+
+- Charset detection with $charset == '' no longer turns to mbstring's
+  internal encoding defined through mb_internal_encoding(). Only the encoding
+  defined through the php.ini setting mbstring.internal_encoding is considered.
+
+- number_format() no longer truncates multibyte decimal points and thousand
+  separators to the first byte.
+
+- The third parameter ($matches) to preg_match_all() is now optional. If
+  omitted, the function will simply return the number of times the pattern was
+  matched in the subject and will have no other side effects.
+
+- The second argument of scandir() now accepts SCANDIR_SORT_NONE (2) as a
+  possible value. This value results in scandir() performing no sorting: on
+  local filesystems, this allows files to be returned in native filesystem
+  order.
+
+- stream_select() now preserves the keys of the passed array, be they numeric or
+  strings. This breaks code that iterated the resulting stream array using a
+  numeric index, but makes easier to identify which of the passed streams are
+  present in the result.
+
+- stream_set_write_buffer() no longer disables the read buffer of a plain
+  stream when 0 is given as the second argument.
+
+- stream_set_write_buffer() no longer changes the chunk size in socket streams.
+
+- 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.
+
+- The raw data parameter in openssl_encrypt() and openssl_decrypt() is now an
+  options integer rather than a boolean. A value of true produces the same
+  behavior.
+
+- 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).
+
+- Added AES support to OpenSSL.
+
+- openssl_csr_new() expects the textual data to be in UTF-8.
+
+- Added no-padding option to openssl_encrypt() and 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 and decode in hex format to mb_encode_numericentity() and
+  mb_decode_numericentity().
+
+- Added support for SORT_NATURAL and SORT_FLAG_CASE in array sort functions:
+  sort(), rsort(), ksort(), krsort(), asort(), arsort() and array_multisort().
+
+- is_a() and is_subclass_of() now have third boolean parameter, which specifies
+  if the first argument can be a string class name. Default if false for is_a
+  and true for is_subclass_of() for BC reasons.
+
+- ob_start() will now treat a chunk size of 1 as meaning 1 byte, rather than
+  the previous special case behavior of treating it as 4096 bytes.
+
+- idn_to_ascii() and idn_to_utf8() now take two extra parameters, one indicating
+  the variant (IDNA 2003 or UTS #46) and another, passed by reference, to return
+  details about the operation in case UTS #46 is chosen.
+
+- gzencode() used with FORCE_DEFLATE now generates RFC1950 compliant data.
+
+- ob_start() no longer starts multiple output buffers when passed
+  array("callback1", "callback2", "callback3", ...).
+
+- Since 5.4.4, "php://fd" stream syntax is available only in CLI build.
+
+- Since 5.4.5, resourcebundle_create() accepts null for the first two arguments.
+
+- Since 5.4.6, SimpleXMLElement::getDocNamespaces() has and extra parameter which
+  allows for toggling if the list of namespaces starts from the document root
+  or from the node you call the method on
+
+- Since 5.4.7, ctor is always called when new user stream wrapper object is created.
+  Before, it was called only when stream_open was called.
+
+==============================
+5. Changes to existing classes
+==============================
+
+- Classes that implement stream wrappers can define a method called
+  stream_truncate that will respond to truncation, e.g. through ftruncate.
+  Strictly speaking, this is an addition to the user-space stream wrapper
+  template, not a change to an actual class.
+
+- 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.
+
+==============================
+6. Changes to existing methods
+==============================
+
+- DateTime::parseFromFormat() now has a "+" 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.
+
+- Since 5.4.5, the constructor of ResourceBundle accepts NULL for the first two
+  arguments.
+
+===========================
+7. Deprecated Functionality
+===========================
+
+- The following functions are deprecated in PHP 5.4:
+  - mcrypt_generic_end():       use mcrypt_generic_deinit() instead
+  - mysql_list_dbs()
+
+========================
+8. Removed Functionality
+========================
+
+a. Removed features
+
+   The following features have been removed from PHP 5.4:
+
+   - Magic quotes
+   - Register globals
+   - Safe mode
+   - Session extension bug compatibility mode
+   - Y2K compliance mode
+
+b. Removed functions
+
+   The following functions are no longer available in PHP 5.4:
+
+   - define_syslog_variables()
+   - import_request_variables()
+   - session_is_registered()
+   - session_register()
+   - session_unregister()
+   - set_magic_quotes_runtime()
+   - mysqli_bind_param() (alias of mysqli_stmt_bind_param())
+   - mysqli_bind_result() (alias of mysqli_stmt_bind_result())
+   - mysqli_client_encoding() (alias of mysqli_character_set_name())
+   - mysqli_fetch() (alias of mysqli_stmt_fetch())
+   - mysqli_param_count() (alias of mysqli_stmt_param_count())
+   - mysqli_get_metadata() (alias of mysqli_stmt_result_metadata())
+   - mysqli_send_long_data() (alias of mysqli_stmt_send_long_data())
+   - mysqli::client_encoding() (alias of mysqli::character_set_name)
+   - mysqli_stmt::stmt() (never worked/always throws, undocumented)
+
+c. Removed syntax
+
+   - break $var;
+   - continue $var;
+
+d. Removed hash algorithms
+
+   - Salsa10 and Salsa20, which are actually stream ciphers
+
+====================
+9. Extension Changes
+====================
+
+a. Extensions no longer maintained
+
+   - ext/sqlite is no longer part of the base distribution and has been moved
+     to PECL. Use sqlite3 or PDO_SQLITE instead.
+
+b. Extensions with changed behavior
+
+   - 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.
+
+   - SNMP extension
+     - Functions in SNMP extension now returns FALSE on every error
+       condition including SNMP-related (no such instance, end of MIB,
+       etc). Thus, in patricular, breaks previous behavior of get/walk
+       functions returning an empty string on SNMP-related errors.
+     - Multi OID get/getnext/set queries are now supported.
+     - New constants added for use in snmp_set_oid_output_format()
+       function.
+     - Function snmp_set_valueretrieval() changed it's behavior:
+	    SNMP_VALUE_OBJECT can be combined with one of
+	    SNMP_VALUE_PLAIN or SNMP_VALUE_LIBRARY resulting OID value
+	    changes. When no SNMP_VALUE_PLAIN or SNMP_VALUE_LIBRARY
+	    is supplied with SNMP_VALUE_OBJECT, SNMP_VALUE_LIBRARY is used.
+	    Prior to 5.4.0 when no SNMP_VALUE_PLAIN or SNMP_VALUE_LIBRARY
+	    was supplied with SNMP_VALUE_OBJECT, SNMP_VALUE_PLAIN was used.
+     - Added feature-rich OO API (SNMP class)
+     - Dropped UCD-SNMP compatibility code. Consider upgrading to
+       net-snmp v5.3+. Net-SNMP v5.4+ is required for Windows version.
+     - In sake of adding support for IPv6 DNS name resolution of
+       remote SNMP agent (peer) is done by extension now, not by Net-SNMP
+       library anymore.
+
+   - Date extension
+     - Setting the timezone with the TZ environment variable is no longer
+       supported, instead date.timezone and/or date_default_timezone_set()
+       have to be used.
+     - The extension will no longer guess the default timezone if none
+       is set with date.timezone and/or date_default_timezone_set().
+       Instead it will always fall back to "UTC".
+
+   - Hash extension
+     - the output of the tiger hash family has been corrected, see
+       https://bugs.php.net/61307
+
+===========================
+10. Changes in SAPI support
+===========================
+
+- A REQUEST_TIME_FLOAT value 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() are now supported on FastCGI.
+
+- The interactive shell allows a shortcut #inisetting=value to change php.ini
+  settings at run-time.
+
+- The interactive shell now works with the shared readline extension.
+
+- The interactive shell no longer terminates on fatal errors.
+
+- A new PHP CLI command line option --rz <name> shows information about the
+  named Zend extension.
+
+===================
+11. Windows support
+===================
+
+- is_link now works properly for symbolic links on Windows Vista
+  or later. Earlier systems do not support symbolic links.
+
+- As of PHP 5.4.5 and above the COM extension isn't compiled statically in PHP
+  anymore but shared. It'll still be delivered with the standard PHP release but
+  must be activated manually with the "extension = php_com_dotnet.dll" directive
+  in php.ini.
+
+- Apache 2.4 handler is supported as of PHP 5.4.9
+
+==================
+12. New in PHP 5.4
+==================
+
+a. New Features
+
+  - A built-in CLI web server for testing purposes is now available:
+     $ php -S 127.0.0.1:8888
+
+  - File Upload Progress support is implemented in the Session extension.
+
+b. Syntax additions
+
+  - 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]
+
+  - Callable typehint indicating argument must be callable:
+      function foo(callable $do) {
+      }
+      foo("strcmp");
+      foo(function() {});
+      $o = new ArrayObject();
+      foo(array($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
+
+  - Chained string array offsets now work.
+      $a = "abc";
+      echo $a[0][0];
+
+  - 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}();
+
+  - Class member access on instantiation:
+      (new foo)->method()
+      (new foo)->property
+      (new foo)[0]
+
+
+c. 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_result()
+    - ldap_control_paged_result_response()
+
+  - libxml:
+    - libxml_set_external_entity_loader()
+
+  - mysqli:
+    - mysqli_error_list()
+    - mysqli_stmt_error_list()
+
+  - pgsql
+    - pg_escape_identifier() (5.4.4)
+    - pg_escape_literal() (5.4.4)
+
+  - Session:
+    - session_register_shutdown()
+    - session_status()
+
+  - SPL
+    - class_uses()
+
+d. 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
+  - 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
+  - OPENSSL_CIPHER_AES_128_CBC
+  - OPENSSL_CIPHER_AES_192_CBC
+  - OPENSSL_CIPHER_AES_256_CBC
+  - OPENSSL_RAW_DATA
+  - OPENSSL_ZERO_PADDING
+  - 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
+  - U_IDNA_DOMAIN_NAME_TOO_LONG_ERROR
+  - IDNA_CHECK_BIDI
+  - IDNA_CHECK_CONTEXTJ
+  - IDNA_NONTRANSITIONAL_TO_ASCII
+  - IDNA_NONTRANSITIONAL_TO_UNICODE
+  - INTL_IDNA_VARIANT_2003
+  - INTL_IDNA_VARIANT_UTS46
+  - IDNA_ERROR_EMPTY_LABEL
+  - IDNA_ERROR_LABEL_TOO_LONG
+  - IDNA_ERROR_DOMAIN_NAME_TOO_LONG
+  - IDNA_ERROR_LEADING_HYPHEN
+  - IDNA_ERROR_TRAILING_HYPHEN
+  - IDNA_ERROR_HYPHEN_3_4
+  - IDNA_ERROR_LEADING_COMBINING_MARK
+  - IDNA_ERROR_DISALLOWED
+  - IDNA_ERROR_PUNYCODE
+  - IDNA_ERROR_LABEL_HAS_DOT
+  - IDNA_ERROR_INVALID_ACE_LABEL
+  - IDNA_ERROR_BIDI
+  - IDNA_ERROR_CONTEXTJ
+
+e. New classes
+
+  - Reflection:
+    - ReflectionZendExtension
+
+  - Intl:
+    - Transliterator
+    - Spoofchecker
+
+  - JSON:
+    - JsonSerializable
+
+  - Session:
+    - SessionHandler
+
+  - SNMP:
+    - SNMP
+
+  - SPL:
+    - CallbackFilterIterator
+    - RecursiveCallbackFilterIterator
+
+f. New methods
+
+  - Closure:
+    - Closure::bind()
+    - Closure::bindTo()
+
+  - Reflection:
+    - 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()
+
+  - PDO_DBLIB:
+    - PDO::newRowset()
+
+  - SPL:
+    - DirectoryIterator::getExtension()
+    - RegexIterator::getRegex()
+    - SplDoublyLinkedList::serialize()
+    - SplDoublyLinkedList::unserialize()
+    - SplFileInfo::getExtension()
+    - SplFileObject::fputcsv()
+    - SplObjectStorage::getHash()
+    - SplQueue::serialize
+    - SplQueue::unserialize
+    - SplStack::serialize
+    - SplStack::unserialize
+    - SplTempFileObject::fputcsv
+
+  - XSLT:
+    - XsltProcessor::setSecurityPrefs()
+    - XsltProcessor::getSecurityPrefs()
+
+  - Zlib:
+    - zlib_decode()
+    - zlib_encode()
+
+g. New Hash algorithms
+
+  - fnv132
+  - fnv164
+  - joaat