PHP 8.4 documentation tracker

[Girgias]

Pages which need to be added/modified for complete documentation of PHP 8.4:

Based of the migration guide: https://www.php.net/manual/en/migration84.php (#3822):

Related to php/doc-base#165

Note

This issue is still a Work In Progress
Missing items:

• PCRE changes

Important

Priority should be given to documenting Core language and ext/standard behavioural changes

Core

New features: ✅

• Property Hooks (Partial PHP 8.4: Document reflection changes #4037, Hooks documentation #4094)
• Asymmetric Property Visibility (Asymmetric Visiblity and Final properties #3828)
• Lazy Objects (Document lazy objects #3975)
• #[\Deprecated] attribute (Document #[\Deprecated] #3894)
• request_parse_body() Parsing RFC1867 (multipart) requests in non-POST HTTP requests (Create stub for request_parse_body() #4108)
• new without parenthesis (Add documentation for new MyClass()->method() without parentheses #3978)
• Improved debugging info output for WeakReferences ([PHP 8.4] Update WeakReference::__debugInfo() changelog #4256)
• Improved debugging info output for Closures ([PHP 8.4] Update Closure::__debugInfo() changelog #4257)
• Defining Identical Symbols in Different Namespace Blocks This is more of a bugfix than anything else

Deprecated: ✅

• Implicitly nullable parameter (Mention deprecation of implicit nullable types in function docs #4008)
• Raising zero to the power of negative number (PHP 8.4: Raising 0 to a negative exponent is deprecated #4102)
• Using underscore _ as class name (PHP 8.4: Single underscore as class name is deprecated #4099)
• trigger_error() with E_USER_ERROR (Use modern markup for E_* constants #4056, PHP 8.4: trigger_error() updates #4063)
• E_STRICT constant (Use modern markup for E_* constants #4056)

BC Break:

• exit() behavioural changes (PHP 8.4: exit() is now a function #4070)
• Recursion during comparison
• Indirect Modification of readonly Properties
• Temporary Filename Length
• Removal of E_STRICT error level This is an internal engine change

New Functions: ✅

• request_parse_body (Create stub for request_parse_body() #4108)

New Classes: ✅

• Deprecated (Document #[\Deprecated] #3894)
• RequestParseBodyException (Create stub for request_parse_body() #4108)

New Constants: ✅

• PHP_OUTPUT_HANDLER_PROCESSED (Update output control constants #3039, Fix GH-3384 #3587)
• PHP_SBINDIR (Add PHP_SBINDIR (PHP-8.4) #3423)

Changed Functions: ✅

• trigger_error() and user_error() have a return type of true instead of bool now (PHP 8.4: trigger_error() updates #4063)

Other Changes:

• Closures names
• Fibers (Document changes related to Fibers and destructors #4060)
  • Fiber switching during destructor execution is now allowed.
  • Destructors may now be executed in a separate Fiber
  • GC triggered in Fiber behavioural change
• Output Handlers
  • Output handler status flags are now cleared (Document ob_start() change #4350)
  • output_add_rewrite_var() now uses url_rewriter.hosts INI (Document output_add_rewrite_var() url_rewriter.hosts bugfix #4351)

SAPI

apache2handler:

• Support for EOL Apache 2.0 and 2.2 has been removed. Minimum required Apache version is now 2.4.

FPM:

• Flushing headers without a body will now succeed. (PHP 8.4: Flushing headers without a body will now succeed #4122)
• Status page has a new field to display a memory peak. (Document FPM memory peak status field #4335)
• The /dev/poll events.mechanism setting for Solaris/Illumos had been retired. (noted in Fix FPM event mechanism poll typo and improve it #4334)

CLI:

• The builtin server looks for an index file recursively by traversing parent directories in case the specified file cannot be located.
  This process was previously skipped if the path looked like it was referring to a file,
  i.e. if the last path component contained a period.
  In that case, a 404 error was returned.
  The behavior has been changed to look for an index file in all cases.

Class constants are now typed

• ext/date ([PHP 8.4] Add ext-date constant types #4237)
• ext/intl ([PHP 8.4] Add ext-intl constant types #4238)
• ext/pdo ([PHP 8.4] Mention class constant types in PDO changelog #4243)
• ext/reflection ([PHP 8.4] Add class constant types for Reflection #4244)
• ext/spl
• ext/sqlite
• ext/xmlreader (PHP 8.4: Add changelog entry for typed constants in XMLReader #4139)

New warnings and exceptions

cURL: ✅

• curl_multi_select()now throws a ValueError if $timeout is less than 0 or greater than PHP_INT_MAX ([PHP 8.4] Add errors for curl_multi_select #3965)

GD: ✅

• imagejpeg(), imagepng(), imageavif(), imagewebp() now throw a ValueError if $quality is invalid ([PHP 8.4] Add errors for GD functions #3962)
• imageavif() now throw a ValueError if $speed is invalid ([PHP 8.4] Add errors for GD functions #3962)
• imagescale() now throw a ValueError if $mode is invalid ([PHP 8.4] Add errors for GD functions #3962)
• imagescale() now throw a ValueError if $width or $height over/underflows ([PHP 8.4] Add errors for GD functions #3962)
• imagefilter() now throw a ValueError with the IMG_FILTER_SCATTER filter if $sub or $plus over/underflows ([PHP 8.4] Add errors for GD functions #3962)

GetText: ✅

• bind_textdomain_codeset(), textdomain(), d*gettext() now throw a ValueError if $domain is the empty string ([PHP 8.4] Add errors for GetText functions #3964)

Intl: ✅

• resourcebundle_get(), ResourceBundle::get(), and offset access for ResourceBundle
  • TypeError for invalid offset types
  • ValueError for an empty string
  • ValueError if the integer index does not fit in a signed 32 bit integer
• IntlDateFormatter::__construct() now throws a ValueError if $locale is invalid
• NumberFormatter::__construct() now throws a ValueError if $locale is invalid

MBstring: ✅ (#4245)

• mb_encode_numericentity(), mb_decode_numericentity() now check that $map only has integers
• mb_http_input() throws ValueError if $type is invalid
• mb_http_output() throws ValueError if $encoding has null bytes

ODBC: ✅

• odbc_fetch_row() returns false when $row =< 0, this now warns ([PHP 8.4] odbc_fetch_row() can emit a E_WARNING #4258)

PCNTL: ✅ (#4208)

• pcntl_sigprocmask(), pcntl_sigwaitinfo(), and pcntl_sigtimedwait
  • ValueError if $signals array is empty
  • TypeError if $signals array value is not int
  • ValueError if $signals array value is not valid signal
• pcntl_sigprocmask()
  • ValueError if $mode is not one of SIG_BLOCK, SIG_UNBLOCK or SIG_SETMASK
• pcntl_sigtimedwait()
  • ValueError if $seconds is less than 0
  • ValueError if $nanoseconds is less than 0
  • ValueError if $seconds and $nanoseconds are both 0

SimpleXML: ✅

• simplexml_import_dom() throws TypeError instead of ValueError if called with non XML object (Update simplexml_import_dom for PHP 8.4 #3906)

Standard: ✅

• round() now throws a ValueError for invalid $mode, before interpreted as PHP_ROUND_HALF_UP ([PHP 8.4] round() can throw a ValueError #4259)
• php_uname() now throws a ValueError for invalid $mode #3968
• ValueError and ValueError are thrown if the "allowed_classes" option of unserialize() is not an array of class names ([PHP 8.4] unserialize() can throw a ValueError and TypeError #4260)
• str_getcsv() (PHP 8.4: CSV related changes and deprecations #4093)
  • ValueError if $separator is not one byte long
  • ValueError if $enclosure is not one byte long
  • ValueError if $escape is not one byte long or the empty string

XMLReader: ✅ (#4123)

• XMLReader::open() throws ValueError if $encoding is invalid / has nulls
• XMLReader::XML() throws ValueError if $encoding is invalid / has nulls

XMLWriter: ✅ (#4123)

• Passing an encoding that contain null bytes now throws a ValueError

XSL: ✅

• Failure to call a PHP function callback during evaluation now throws instead of emitting a warning. (Document errors and changes in 8.4 for XSL and XPath #4483)
• XSLTProcessor::importStyleSheet() throws TypeError instead of ValueError if called with non XML object. (PHP 8.4: Document errors for XSLTProcessor::importStylesheet() #4136)
• XSLTProcessor::setParameter() parameters that contain null bytes now throws a ValueError (PHP 8.4: Document XSLTProcessor::setParameter() errors #4135)

Resource to Object conversions

DBA: ✅

• Dba\Connection ([PHP 8.4] DBA resource to Object conversions #3914)

ODBC:

• Odbc\Connection
• Odbc\Result

Soap:

• Soap\Url
• Soap\Sdl

Removed extensions ✅ (#4103)

• ext/imap
• ext/pspell
• ext/oci8
• ext/pdo_oci

Extensions

cURL: ✅

• Deprecated:
  • CURLOPT_BINARYTRANSFER constant (Update CURLOPT constant descriptions #3818)
• Other Changes:
  • The minimum libcurl version required is now 7.61.0 ([PHP 8.4] Curl new options and constants #4069)
  • CURLOPT_DNS_USE_GLOBAL_CACHE constant has no effect ([PHP 8.4] Curl new options and constants #4069)
• New Features:
  • curl_version() returns an additional feature_list value, which is an associative array of all known cURL features ([PHP 8.4] Curl new options and constants #4069)
  • Added CURL_HTTP_VERSION_3 and CURL_HTTP_VERSION_3ONLY constants (available since libcurl 7.66 and 7.88) as available options for CURLOPT_HTTP_VERSION ([PHP 8.4] Curl new options and constants #4069)
  • Added CURLOPT_PREREQFUNCTION as a cURL option that accepts a callable to be called after the connection is made, but before the request is sent. This callable must return either CURL_PREREQFUNC_OK or CURL_PREREQFUNC_ABORT to allow or abort the request ([PHP 8.4] Curl new options and constants #4069)
  • Added CURLOPT_SERVER_RESPONSE_TIMEOUT, which was formerly known as CURLOPT_FTP_RESPONSE_TIMEOUT. Both constants hold the same value ([PHP 8.4] Curl new options and constants #4069)
  • Added CURLOPT_DEBUGFUNCTION as a cURL option that accepts a callable that gets called during the request lifetime with the CurlHandle object, an integer containing the debug message type, and a string containing the debug message ([PHP 8.4] Curl new options and constants #4069)
  • The curl_getinfo() now returns an additional posttransfer_time_us key, containing the number of microseconds from the start until the last byte is sent. When a redirect is followed, the time from each request is added together. This value can also be retrieved by passing CURLINFO_POSTTRANSFER_TIME_T to the curl_getinfo() option parameter. This requires libcurl 8.10.0 or later ([PHP 8.4] Curl new options and constants #4069)

Date: ✅

• Deprecated:
  • The DatePeriod::__construct(string $isostr, int $options = 0) signature is now deprecated.
    Use DatePeriod::createFromISO8601String() instead. (7d81260)
  • The SUNFUNCS_RET_TIMESTAMP, SUNFUNCS_RET_STRING, and SUNFUNCS_RET_DOUBLE constants are now deprecated. (SUNFUNCS_* constants are deprecated as of PHP 8.4.0 #4006)

DBA: ✅

• Deprecated:
  • Passing null or false to dba_key_split() is now deprecated. It would always return false in those cases. (dba_key_split() deprecation #4007)
• New Classes
  • Dba\Connection ([PHP 8.4] DBA resource to Object conversions #3914)

DOM: ✅

• BC Break:
  • Some DOM methods previously returned false or a PHP_ERR DOMException if a new node could not be allocated. They now consistently throw an INVALID_STATE_ERR DOMException. (Skipped as this is rare and can be documented as part of PHP_ERR deprecation.)
  • DOMImplementation::createDocument() now has a tentative return type of DOMDocument (Document DOMImplementation::createDocument() change for PHP 8.4 #3901)
  • No longer possible to clone DOMXPath objects (Document clone behaviour of DOMXPath #3925)
  • DOMImplementation::getFeature() has been removed
• Deprecated: (PHP 8.4: Document DOM deprecations #4113)
  • The DOM_PHP_ERR constant is now deprecated.
  • The DOMDocument::$actualEncoding property is now formally deprecated.
  • The DOMDocument::$config property is now formally deprecated.
  • The DOMEntity::$actualEncoding property is now formally deprecated.
  • The DOMEntity::$encoding property is now formally deprecated.
  • The DOMEntity::$version property is now formally deprecated.
• New Methods:
  • Added the DOMNode::compareDocumentPosition() with its associated constants: (Document compareDocumentPosition & related constants #4081)
    • DOMNode::DOCUMENT_POSITION_DISCONNECTED
    • DOMNode::DOCUMENT_POSITION_PRECEDING
    • DOMNode::DOCUMENT_POSITION_FOLLOWING
    • DOMNode::DOCUMENT_POSITION_CONTAINS
    • DOMNode::DOCUMENT_POSITION_CONTAINED_BY
    • DOMNode::DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC
  • DOMXPath::registerPhpFunctionNS() (add XSLTProcessor::registerPHPFunctionNS and DOMXPath::registerPhpFunctionNS #4129)
  • DOMXPath::quote() (Document DOMXPath::quote() #3909)
• Other changes:
  • DOMDocument::registerNodeClass() now has a tentative return type of true instead of bool (Document tentative return type change for DOMDocument::registerNodeClass() #4082)

GMP:

• BC Break:
  • GMP is now final (gmp: GMP is marked final #3990)
• Other Changes:
  • Now possible to cast GMP to bool, before was a E_RECOVERABLE_ERROR

Hash: ✅ (#4137)

• Deprecated:
  • Passing invalid options to hash functions is now deprecated.
• Other changes:
  • hash_update() now has a tentative return type of true instead of bool

Intl:

• Deprecated: ([PHP 8.4] intl update part 2 #4207)
  • Calling intlcal_set() or IntlCalendar::set() with more than 2 arguments is deprecated, use IntlCalendar::setDate() or IntlCalendar::setDateTime() instead.
  • Calling intlgregcal_create_instance() or IntlGregorianCalendar::__construct() with more than 2 arguments is deprecated, use IntlGregorianCalendar::createFromDate() or IntlGregorianCalendar::createFromDateTime() instead.
• New Features: ([PHP 8.4] intl update part 2 #4207)
  • Added the NumberFormatter::ROUND_HALFODD to complement the existing NumberFormatter::ROUND_HALFEVEN functionality.
  • Added NumberFormatter::ROUND_TOWARD_ZERO and NumberFormatter::ROUND_AWAY_FROM_ZERO as aliases for NumberFormatter::ROUND_DOWN and NumberFormatter::ROUND_UP to be consistent with the new RoundingMode modes.
• Other changes:
  • ResourceBundle::get() now has a tentative return type of ResourceBundle|array|string|int|null
  • The idn_to_ascii() and idn_to_utf8() functions now always throw ValueErrors if the domain name is empty or too long.
  • The idn_to_ascii() and idn_to_utf8() functions now always throw ValueErrors if the variant parameter is not INTL_IDNA_VARIANT_UTS46.
  • The behaviour of Intl class has been normalized to always throw Error exceptions when attempting to use a non-initialized object, or when cloning fails.

LDAP:

• Deprecated: (PHP-8.4: LDAP changes #4066)
  • Calling ldap_connect() with more than 2 arguments is deprecated, use ldap_connect_wallet() instead.
  • Calling ldap_exop() with more than 4 arguments is deprecated, use ldap_exop_sync() instead.

libxml: ✅ (#4051)

• Other changes:
  • The minimum libxml2 version required is now 2.9.4.
  • libxml_set_streams_context() now immediately throws a TypeError when a non-stream-context resource is passed to the function, instead of throwing later when the stream context is used.

MBString:

• BC Break:
  • On invalid strings (those with encoding errors), mb_substr() now interprets character indices in the same manner as most other mbstring functions. This means that character indices returned by mb_strpos() can be passed to mb_substr().
  • For SJIS-Mac (MacJapanese) strings, character indices passed to mb_substr() now refer to the indices of the Unicode codepoints which are produced when the string is converted to Unicode. This is significant because around 40 SJIS-Mac characters convert to a sequence of multiple Unicode codepoints.
• Other changes:
  • The behavior of mb_strcut() is more consistent now on invalid UTF-8 and UTF-16 strings. There is no behavioural change for valid UTF-8 and UTF-16 strings.
  • Unicode data tables have been updated to Unicode 16.0.

MySQLi: ✅

• BC Break:
  • MYSQLI_SET_CHARSET_DIR constant has been removed ([PHP 8.4] Add removal note to mysqli constants #3960)
  • MYSQLI_STMT_ATTR_PREFETCH_ROWS constant has been removed ([PHP 8.4] Add removal note to mysqli constants #3960)
  • MYSQLI_CURSOR_TYPE_FOR_UPDATE constant has been removed ([PHP 8.4] Add removal note to mysqli constants #3960)
  • MYSQLI_CURSOR_TYPE_SCROLLABLE constant has been removed ([PHP 8.4] Add removal note to mysqli constants #3960)
  • MYSQLI_TYPE_INTERVAL constant has been removed ([PHP 8.4] Add removal note to mysqli constants #3960)
• Deprecated:
  • mysqli_ping() ([PHP 8.4] Add deprecation warning to mysqli functions #3958)
  • mysqli::ping() ([PHP 8.4] Add deprecation warning to mysqli functions #3958)
  • mysqli_kill() ([PHP 8.4] Add deprecation warning to mysqli functions #3958)
  • mysqli::kill() ([PHP 8.4] Add deprecation warning to mysqli functions #3958)
  • mysqli_refresh() ([PHP 8.4] Add deprecation warning to mysqli functions #3958)
  • mysqli::refresh() ([PHP 8.4] Add deprecation warning to mysqli functions #3958)
  • All MYSQLI_REFRESH_* constants ([PHP 8.4] Add deprecation warning to mysqli constants #3959)
  • Passing the $mode parameter explicitly to mysqli_store_result() (699e596)
  • MYSQLI_STORE_RESULT_COPY_DATA constant ([PHP 8.4] Add deprecation warning to mysqli constants #3959)

MySQLnd:

• BC Break:
  • The error code reported for MySQL server wait timeouts has been changed from 2006 to 4031 for MySQL server versions 8.0.24 and above.
• Other changes:
  • Support for the new VECTOR data type from MySQL 9.

ODBC

• Other changes:
  • The row of odbc_fetch_object(), odbc_fetch_array(), and odbc_fetch_into() now have a default value of null, consistent with odbc_fetch_row(). Previously, the default values were -1, -1, and 0, respectively.

Opcache:

• BC Break:
  • The maximum value of the opcache.interned_strings_buffer setting on 64bit architectures is now 32767. Previously it was 4095. (Update documentation of opcache.interned_strings_buffer #4061)
  • JIT Changes:
    • Default Config
    • Fatal Error on initialization failure

OpenSSL: ✅

• New Features:
  • Implement PASSWORD_ARGON2 password hashing. Requires OpenSSL 3.2 and NTS build (Document argon2 installation with OpenSSL in PHP 8.4 #4272)
  • Added support for Curve25519 + Curve448 based keys.
    Specifically x25519, ed25519, x448 and ed448 fields are supported in
    openssl_pkey_new(),
    openssl_pkey_get_details(),
    openssl_sign(),
    and openssl_verify()
    were extended to support those keys. (Document pkey gen params and addition of Curve25519 + Curve448 #4281)
• Other changes:
  • The extra_attributes in openssl_csr_new() sets the CSR attributes instead of subject DN, which incorrectly done previously. (Document 8.4 changes in openssl_csr_new #4315)
  • The dn in openssl_csr_new() allows setting an array of values for a single entry. (Document 8.4 changes in openssl_csr_new #4315)
  • New serial_hex added to openssl_csr_sign() to allow setting serial numbers in the hexadecimal format. (Document serial_hex parameter addition in openssl_csr_sign #4316)
  • Parsing ASN.1 UTCTime with openssl_x509_parse() fails if seconds are omitted for OpenSSL version below 3.2 (-1 is returned for such fields). OpenSSL version above 3.3 did not load such certificates already. (Add note about openssl_x509_parse time parsing change in 8.4 #4317)
  • The minimum OpenSSL version required is now 1.1.1. (Update requirements for minimal OpenSSL version #4318)

PCNTL:

• BC Break:
  • pcntl_sigprocmask(), pcntl_sigwaitinfo(), and pcntl_sigtimedwait() now always return false on failure, in some cases they would previously return -1.
• New Enum:
  • Pcntl\QosClass ([PHP 8.4] Pcntl::QosClass #4095, PCNTL: Include new enum into docs #4104)
• New functions:
  • pcntl_getcpu
  • pcntl_getcpuaffinity
  • pcntl_getqos_class
  • pcntl_setns
  • pcntl_waitid

PCRE:

• TODO all changes related to lib update
• BC Break:
  • The bundled pcre2lib has been updated to version 10.44.
• New Features
  • TODO
  • Added support for the r (PCRE2_EXTRA_CASELESS_RESTRICT) modifier,
    as well as the (?r) mode modifier. When enabled along with the case-insensitive modifier (i),
    the expression locks out mixing of ASCII and non-ASCII characters.
    ([PHP 8.4] PCRE - PCRE2-v10.44 updates #4078)

PDO:

• New Features
  • Subclasses and PDO::connect() (Document new PDO classes and methods #4115)
  • Added a custom parser supporting:
    • single and double-quoted literals, with doubling as escaping mechanism
    • two-dashes and non-nested C-style comments
• Other changes:
  • It is now possible to fetch the value of the PDO::ATTR_STRINGIFY_FETCHES attribute with PDO::getAttribute().
  • It is now possible to fetch the value of the PDO::PGSQL_ATTR_RESULT_MEMORY_SIZE attribute with PDO::getAttribute().

PDO_DBLIB:

• BC Break:
  • The DBLIB_ATTR_STRINGIFY_UNIQUEIDENTIFIER and DBLIB_ATTR_DATETIME_CONVERT attributes are now booleans, previously they were int.

PDO_FIREBIRD:

• BC Break:
  • The ATTR_AUTOCOMMIT attribute is now boolean, previously was int.
  • The extension now requires a C++ compiler and fbclient 3.0 or higher

PDO_MYSQL:

• BC Break:
  • The ATTR_AUTOCOMMIT, ATTR_EMULATE_PREPARES, and MYSQL_ATTR_DIRECT_QUERY attributes are now booleans, previously they were int.
• New Features
  • Added a custom parser supporting: (Document new PDO classes and methods #4115)
    • single and double-quoted literals, with doubling and backslash as escaping mechanism
    • backtick literal identifiers and with doubling as escaping mechanism
    • two dashes followed by at least 1 whitespace, non-nested C-style comments, and hash-comments

PDO_PGSQL:

• BC Break:
  • The DSN's credentials, when set, are given priority over their PDO constructor counterparts, being closer to the documentation states.
• Deprecated:
  • Using escaped question marks (??) inside dollar-quoted strings is deprecated.
• New Features
  • Added a custom parser supporting: (Document new PDO classes and methods #4115)
    • single and double-quoted literals, with doubling as escaping mechanism
    • C-style "escape" string literals (E'string')
    • dollar-quoted string literals
    • two-dashes and C-style comments (non-nested)
    • support for ?? as escape sequence for the ? operator
• Other changes:
  • The minimum libpq version required is now 10.0.

PGSQL:

• Deprecated:
  • 2 argument signature of pg_fetch_result, pg_field_prtlen, and pg_field_is_null() is now deprecated, use an explicit value of null for $row parameter
• Other changes:
  • The conditions parameter of pg_select() is now optional and accepts an empty array.
  • The minimum libpq version required is now 10.0.

PDO_SQLITE: ✅

• New Features
  • Added a custom parser supporting: (Document new PDO classes and methods #4115)
    • single, double-quoted, and backtick literals, with doubling as escaping mechanism
    • square brackets quoting for identifiers
    • two-dashes and C-style comments (non-nested)

Phar: ✅ (#4050)

• New Features
  • Added support for the Unix timestamp extension for Zip archives.
• Other changes:
  • The Phar::setAlias(), Phar::setDefaultStub() methods now have a tentative return type of true instead of bool.

POSIX: ✅

• Other changes:
  • posix_isatty() now sets the error number when the file descriptor/stream argument is invalid. ([PHP 8.4] posix_isatty update. #4220)

Random: ✅

• Deprecated:
  • lcg_value() is deprecated in favour of \Random\Randomizer::getFloat() (random: lcg_value() is deprecated #3992)

Readline: ✅

• New Features
  • Added ability to change the .php_history path through the PHP_HISTFILE environment variable. ([PHP 8.4] Mention PHP_HISTFILE env var #4262)

Reflection: ✅

• Deprecated:
  • ReflectionMethod::__construct() with one argument is deprecated use ReflectionMethod::createFromMethodName instead (PHP 8.4: Document reflection changes #4037)
• New Features
  • ReflectionClassConstant::__toString() and ReflectionProperty::__toString() now returns the attached doc comments (PHP-8.4: Reflection behavioural changes #4055, 6d25b8e)
  • ReflectionAttribute now contains a name property to improve the debugging experience (PHP 8.4: Document reflection changes #4037)
• New Classes
  • ReflectionConstant (W.I.P: PHP 8.4: Add ReflectionConstant stubs #4040)
• New Methods
  • ReflectionClassConstant::isDeprecated (Document ReflectionClassConstant::isDeprecated() #3895)
  • ReflectionGenerator::isClosed (Document ReflectionGenerator::isClosed() #3896)
  • ReflectionProperty::isDynamic (Add ReflectionProperty::isDynamic() #4292)
  • Lazy Object related: (Document lazy objects #3975)
    • ReflectionClass::newLazyGhost()
    • ReflectionClass::newLazyProxy()
    • ReflectionClass::resetAsLazyGhost()
    • ReflectionClass::resetAsLazyProxy()
    • ReflectionClass::isUninitializedLazyObject()
    • ReflectionClass::initializeLazyObject()
    • ReflectionClass::markLazyObjectAsInitialized()
    • ReflectionClass::getLazyInitializer()
    • ReflectionProperty::skipLazyInitialization()
    • ReflectionProperty::setRawValueWithoutLazyInitialization()
• Other changes:
  • ReflectionGenerator::getFunction() may now be called after the generator finished executing. (PHP-8.4: Reflection behavioural changes #4055, 812143d)

Session:

• Deprecated:
  • session_set_save_handler() with more than 2 arguments is deprecated, use 2 argument signature
  • Changing the value of the session.sid_length INI setting (session: session.sid_length and session.sid_bits_per_character are deprecated #3993)
  • Changing the value of the session.sid_bits_per_character INI setting (session: session.sid_length and session.sid_bits_per_character are deprecated #3993)
  • Changing the value of the session.use_only_cookies INI setting
  • Changing the value of the session.use_trans_sid INI setting
  • Changing the value of the session.trans_sid_tags INI setting
  • Changing the value of the session.trans_sid_hosts INI setting
  • Changing the value of the session.referer_check INI setting
  • SID constant

SimpleXML:

• BC Break:
  • SimpleXMLElement now doesn't implicitly rewind itself.

SOAP:

• BC Break:
  • SoapClient::$typemap is now an array instead of a resource, checks using is_resource() should be converted to check for null
  • Optional dependency on ext/session which has issues with rtld-now
• Deprecated:
  • Passing an int to SoapServer::addFunction()
  • SOAP_FUNCTIONS_ALL constant
• New Features
  • Added support for clark notation for namespaces in class map
  • Session persistence now works with a shared session module
  • Instances of DateTimeInterface that are passed to xsd:datetime or similar elements are now serialized as such instead of being serialized as an empty string.
• New Classes
  • Soap\Url
  • Soap\Sdl
• New Methods
  • SoapServer::__getLastResponse() (Document SoapServer::__getLastResponse #3877)

Sockets: ✅

• Other changes:
  • The backlog parameter of socket_create_listen() now has a default value of SOMAXCONN. Previously, it was 128. (db22a7c, Add changelog for sockets PHP 8.4 change #4109)

Sodium:

• Other changes:
  • The sodium_crypto_aead_aes256gcm_*() functions are now available on aarch64 CPUs with the ARM cryptographic extensions.

SPL:

• Deprecated:
  • SplFixedArray::__wakeup() (Document some SPL changes in PHP-8.4 #4047)
  • Escape CSV arg for SplFileObject::setCsvControl(), SplFileObject::fputcsv(), and SplFileObject::fgetcsv() (PHP 8.4: CSV related changes and deprecations #4093)
• New Methods
  • SplObjectStorage::seek() (PHP 8.4: Document SplObjectStorage::seek() #4048)
• Other changes:
  • The SplPriorityQueue::insert(), SplPriorityQueue::recoverFromCorruption(), SplHeap::insert(), SplHeap::recoverFromCorruption() methods now have a tentative return type of true instead of bool. (Document some SPL changes in PHP-8.4 #4047)
  • SplObjectStorage now implements SeekableIterator. (Document some SPL changes in PHP-8.4 #4047)
  • Out of bounds accesses in SplFixedArray now throw exceptions of type OutOfBoundsException instead of RuntimeException.

Standard:

• BC Break:
  • strcspn() now correctly returns the length of the string if $characters is the empty string, instead of the length until the first null byte (Add PHP 8.4 changelog entry for strcspn() #3888)
  • http_build_query() now correctly handles backed enums
  • stream_bucket_make_writeable() and stream_bucket_new() now return an instance of StreamBucket instead of stdClass (PHP 8.4: Document StreamBucket #4297)
• Deprecated:
  • stream_context_set_option() with two arguments, use stream_context_set_options() instead (notice the trailing s) (PHP 8.4: stream_context_set_option() 2 param deprecation #4106)
  • Escape CSV arg for fputcsv(), fgetcsv(), and str_getcsv() (PHP 8.4: CSV related changes and deprecations #4093)
  • unserialize() strings with S tag
• New Classes and Enum
  • RoundingMode (PHP 8.4: Document RoundingMode #4080)
  • StreamBucket (PHP 8.4: Document StreamBucket #4297)
• New functions
  • http_get_last_response_headers() (PHP-8.4: Document http_(get|clear)_last_response_headers() functions #4034)
  • http_clear_last_response_headers() (PHP-8.4: Document http_(get|clear)_last_response_headers() functions #4034)
  • fpow() (PHP-8.4: Document fpow() #4035)
  • array_all() (Add documentation for array_find RFC #3465)
  • array_any() (Add documentation for array_find RFC #3465)
  • array_find() (Add documentation for array_find RFC #3465)
  • array_find_key() (Add documentation for array_find RFC #3465)
• Other changes:
  • The default 'cost' value for the PASSWORD_BCRYPT hashing algorithm for password_hash() has been increased from 10 to 12. (password_hash: Update for PHP 8.4 #4455)
  • debug_zval_dump() now indicates whether an array is packed.
  • long2ip() now has a return type of string instead of string|false. ([PHP 8.4] Function return type changes #4083)
  • highlight_string() now has a return type of string|true instead of string|bool. ([PHP 8.4] Function return type changes #4083)
  • print_r() now has a return type of string|true instead of string|bool. ([PHP 8.4] Function return type changes #4083)
  • The mode parameter of the round() function has been widened to RoundingMode|int, accepting instances of a new RoundingMode enum. (PHP 8.4: Document type widening of mode param of round() #4107)
  • round() behavioural changes (Update round() for PHP-8.4 and Minor fixes for BCMath's round #4425)

Tidy: ✅

• BC Break:
  • Failures in the constructor now throw exceptions rather than emitting warnings and having a broken object. (Document tidy constructor changes in PHP 8.4 #3907)
• New Methods
  • tidyNode::getNextSibling() (Document tidyNode::getNextSibling() and tidyNode::getPreviousSibling() #3874)
  • tidyNode::getPreviousSibling() (Document tidyNode::getNextSibling() and tidyNode::getPreviousSibling() #3874)

XML: ✅ (#4067)

• BC Break:
  • The xml_set_*() functions now check for proper callables, but see related deprecations
• Deprecated:
  • xml_set_object()
  • Passing non-callable strings to xml_set_*() functions

XSL: ✅

• New Features
  • It is now possible to use parameters that contain both single and double quotes. (Document XSLTProcessor::setParameter() quote fix #4038)
  • It is now possible to pass any callable to XSLTProcessor::registerPhpFunctions() (PHP 8.4: Document registerPhpFunctions() changes #4114)
  • New related XSLTProcessor::registerPHPFunctionNS() function (add XSLTProcessor::registerPHPFunctionNS and DOMXPath::registerPhpFunctionNS #4129)
  • Added XSLTProcessor::$maxTemplateDepth and XSLTProcessor::$maxTemplateVars to control the recursion depth of XSL template evaluation. (Document XSLTProcessor properties #4041)
• Other changes:
  • The typed properties XSLTProcessor::$cloneDocument and XSLTProcessor::$doXInclude are now declared. (Document XSLTProcessor properties #4041)

ZIP: ✅

• New Features
  • Added the ZipArchive::ER_TRUNCATED_ZIP constant, which was added in libzip 1.11. (add Zip::ER_TRUNCATED_ZIP #3799)

Zlib: ✅

• Other changes:
  • The minimum zlib version required is now 1.2.11. (PHP 8.4: Update Zlib lib requirement #4105)

New Functions

BCMath ✅

• bcceil (ext/bcmath - Added bcceil, bcfloor, bcround and bcdivmod #4132)
• bcdivmod (ext/bcmath - Added bcceil, bcfloor, bcround and bcdivmod #4132)
• bcfloor (ext/bcmath - Added bcceil, bcfloor, bcround and bcdivmod #4132)
• bcround (ext/bcmath - Added bcceil, bcfloor, bcround and bcdivmod #4132)

Date

• DateTime::createFromTimestamp
• DateTime::getMicrosecond
• DateTime::setMicrosecond
• DateTimeImmutable::createFromTimestamp
• DateTimeImmutable::getMicrosecond
• DateTimeImmutable::setMicrosecond

Hash

• HashContext::__debugInfo

Intl

• IntlDateFormatter::getIanaID
• intltz_get_iana_id
• IntlDateFormatter::parseToCalendar
• SpoofChecker::setAllowedChars
• grapheme_str_split #3974 ([PHP 8.4] Add manual for grapheme_str_split function #3956)

MBString ✅

• mb_trim ([PHP 8.4] Add mb_* functions #3922)
• mb_ltrim ([PHP 8.4] Add mb_* functions #3922)
• mb_rtrim ([PHP 8.4] Add mb_* functions #3922)
• mb_ucfirst ([PHP 8.4] Add mb_* functions #3922)
• mb_lcfirst ([PHP 8.4] Add mb_* functions #3922)

Opcache

• opcache_jit_blacklist

PDO_PGSQL ✅

• Pdo\Pgsql::setNoticeCallback (Document new PDO classes and methods #4115)

PGSQL

• pg_change_password
• pg_jit
• pg_put_copy_data
• pg_put_copy_end
• pg_result_memory_size ([PHP 8.4] Add manual for pg_result_memory_size() #3972)
• pg_set_chunked_rows_size
• pg_socket_poll

XMLReader ✅ (#4138)

• XMLReader::fromStream
• XMLReader::fromUri
• XMLReader::fromString

XMLWriter ✅ (#4138)

• XMLWriter::toStream
• XMLWriter::toUri
• XMLWriter::toMemory

New Classes

BCMath

• BcMath\Number

DOM (#4212, #4306)

• Dom\HTMLDocument
• Dom\XMLDocument
• New Dom\Node classes?

ODBC

• Odbc\Connection
• Odbc\Result

PDO_DBLIB ✅

• Pdo\DbLib (Document new PDO classes and methods #4115)

PDO_FIREBIRD ✅

• Pdo\Firebird (Document new PDO classes and methods #4115)

PDO_MYSQL ✅

• Pdo\Mysql (Document new PDO classes and methods #4115)

PDO_ODBC ✅

• Pdo\Odbc (Document new PDO classes and methods #4115)

PDO_PGSQL ✅

• Pdo\Pgsql (Document new PDO classes and methods #4115)

PDO_SQLITE ✅

• Pdo\Sqlite (Document new PDO classes and methods #4115)

New Constants

cURL ✅

• CURL_HTTP_VERSION_3 ([PHP 8.4] Curl new options and constants #4069)
• CURL_HTTP_VERSION_3ONLY ([PHP 8.4] Curl new options and constants #4069)
• CURLOPT_TCP_KEEPCNT ([PHP 8.4] Curl new options and constants #4069)
• CURLOPT_PREREQFUNCTION ([PHP 8.4] Curl new options and constants #4069)
• CURL_PREREQFUNC_OK ([PHP 8.4] Curl new options and constants #4069)
• CURL_PREREQFUNC_ABORT ([PHP 8.4] Curl new options and constants #4069)
• CURLOPT_SERVER_RESPONSE_TIMEOUT ([PHP 8.4] Curl new options and constants #4069)
• CURLOPT_DEBUGFUNCTION ([PHP 8.4] Curl new options and constants #4069)
• CURLINFO_TEXT ([PHP 8.4] Curl new options and constants #4069)
• CURLINFO_HEADER_IN ([PHP 8.4] Curl new options and constants #4069)
• CURLINFO_DATA_IN ([PHP 8.4] Curl new options and constants #4069)
• CURLINFO_DATA_OUT ([PHP 8.4] Curl new options and constants #4069)
• CURLINFO_SSL_DATA_OUT ([PHP 8.4] Curl new options and constants #4069)
• CURLINFO_SSL_DATA_IN ([PHP 8.4] Curl new options and constants #4069)
• CURLINFO_POSTTRANSFER_TIME_T ([PHP 8.4] Curl new options and constants #4069)

Intl

• PATTERN
• PROPERTY_IDS_UNARY_OPERATOR
• PROPERTY_ID_COMPAT_MATH_START
• PROPERTY_ID_COMPAT_MATH_CONTINUE

LDAP

• LDAP_OPT_X_TLS_PROTOCOL_MAX
• LDAP_OPT_X_TLS_PROTOCOL_TLS1_3

libxml ✅

• LIBXML_RECOVER (Add libxml constants for PHP 8.4 #3900)
• LIBXML_NO_XXE (Add libxml constants for PHP 8.4 #3900)

MySQLi ✅

• MYSQLI_TYPE_VECTOR (PHP 8.4: MYSQLI_TYPE_VECTOR #4065)

OpenSSL

• X509_PURPOSE_OCSP_HELPER
• X509_PURPOSE_TIMESTAMP_SIGN

PCNTL ✅

• SIGCKPT (DragonFlyBSD only) (Pcntl php84 #4073)
• SIGCKPTEXIT (DragonFlyBSD only) (Pcntl php84 #4073)
• WEXITED
• WSTOPPED
• WNOWAIT
• P_ALL
• P_PID
• P_PGID
• P_PIDFD (Linux only)
• P_UID (NetBSD/FreeBSD only)
• P_GID (NetBSD/FreeBSD only)
• P_SID (NetBSD/FreeBSD only)
• P_JAILID (FreeBSD only)

PGSQL ✅

• PGSQL_TUPLES_CHUNK (PHP 8.4: pgsql: Add pg_set_chunked_rows_size, PGSQL_TUPLES_CHUNK #4117)

POSIX ✅

• POSIX_SC_CHILD_MAX ([PHP 8.4] - Update posix constants. #4072)
• POSIX_SC_CLK_TCK ([PHP 8.4] - Update posix constants. #4072)

Sockets ✅

• TCP_SYNCNT (Linux only)
• SO_EXCLBIND (Solaris/Illumos only) ([PHP 8.4] socket update #4210)
• SO_NOSIGPIPE (macOS and FreeBSD) ([PHP 8.4] socket update #4210)
• SO_LINGER_SEC (macOS only) ([PHP 8.4] socket update #4210)
• SO_BINDTOIFINDEX ([PHP 8.4] socket update #4210)
• SO_EXCLUSIVEADDRUSE (Windows only)
• IP_PORTRANGE (FreeBSD/NetBSD/OpenBSD only) ([PHP 8.4] socket update #4210)
• IP_PORTRANGE_DEFAULT (FreeBSD/NetBSD/OpenBSD only) ([PHP 8.4] socket update #4210)
• IP_PORTRANGE_HIGH (FreeBSD/NetBSD/OpenBSD only) ([PHP 8.4] socket update #4210)
• IP_PORTRANGE_LOW (FreeBSD/NetBSD/OpenBSD only) ([PHP 8.4] socket update #4210)
• SOCK_NONBLOCK ([PHP 8.4] socket update #4210)
• SOCK_CLOEXEC ([PHP 8.4] socket update #4210)
• SOCK_CONN_DGRAM (NetBSD only) ([PHP 8.4] socket update #4210)
• SOCK_DCCP (NetBSD only) ([PHP 8.4] socket update #4210)

Sodium ✅

• SODIUM_CRYPTO_AEAD_AEGIS128L_KEYBYTES ([PHP 8.4] Add new Sodium functions and constants #3878)
• SODIUM_CRYPTO_AEAD_AEGIS128L_NSECBYTES ([PHP 8.4] Add new Sodium functions and constants #3878)
• SODIUM_CRYPTO_AEAD_AEGIS128L_NPUBBYTES ([PHP 8.4] Add new Sodium functions and constants #3878)
• SODIUM_CRYPTO_AEAD_AEGIS128L_ABYTES ([PHP 8.4] Add new Sodium functions and constants #3878)
• SODIUM_CRYPTO_AEAD_AEGIS256_KEYBYTES ([PHP 8.4] Add new Sodium functions and constants #3878)
• SODIUM_CRYPTO_AEAD_AEGIS256_NSECBYTES ([PHP 8.4] Add new Sodium functions and constants #3878)
• SODIUM_CRYPTO_AEAD_AEGIS256_NPUBBYTES ([PHP 8.4] Add new Sodium functions and constants #3878)
• SODIUM_CRYPTO_AEAD_AEGIS256_ABYTES ([PHP 8.4] Add new Sodium functions and constants #3878)

XML ✅

• XML_OPTION_PARSE_HUGE (Document XML_OPTION_PARSE_HUGE #3899)

[nielsdos]

The TODO lists:

DOMImplementation::getFeature() has been removed

However, this function was never documented and never showed up in the PHP docs, so I guess there's nothing to do here?

[Girgias]

The TODO lists:

DOMImplementation::getFeature() has been removed

However, this function was never documented and never showed up in the PHP docs, so I guess there's nothing to do here?

Indeed, how convenient. :D

[driade]

Hi, good morning.

May I suggest updating tokens.xml and constants.xml to add T_PUBLIC_SET, T_PROTECTED_SET and T_PRIVATE_SET?

#3936

[iluuu1994]

@Girgias Thank you for working on this! @Crell Do you have any capacity to help out with documentation of our features?

[Crell]

@iluuu1994 Already in progress: #3898, #3828. More to come.

[iluuu1994]

Great to hear, thank you Larry!