PHP 8.1.0

What's new in this version:

Core:
- Fixed inclusion order for phpize builds on Windows
- Added missing hashtable insertion APIs for arr/obj/ref
- Implemented FR #77372 (Relative file path is removed from uploaded file)
- (CE_CACHE allocation with concurrent access)
- (Fiber does not compile on AIX)
- (SEGFAULT in zend_do_perform_implementation_check)
- (Header injection via default_mimetype / default_charset)
- (Fix compile failure on Solaris with clang)
- (Observer may not be initialized properly)
- (Using Enum as key in WeakMap triggers GC + SegFault)
- (TEST_PHP_CGI_EXECUTABLE badly set in run-tests.php)
- (unset() of $GLOBALS sub-key yields warning)
- (New ampersand token parsing depends on new line after it)
- (Unicode characters in cli.prompt causes segfault)
- ("Declaration should be compatible with" gives incorrect line number with traits)
- (CLI server: insufficient cleanup if request startup fails)
- (match error message improvements)
- (Fiber support missing for Solaris Sparc)
- (Comparison of fake closures doesn't work)
- (powerpc64 build fails on fibers)
- (Cyclic unserialize in TMPVAR operand may leak)
- (__sleep allowed to return non-array)
- (function scope static variables are not bound to a unique function)
- (__callStatic fired in base class through a parent call if the method is private)
- (incorrect debug info on Closures with implicit binds)

CLI:
- (Server logs incorrect request method)

COM:
- Dispatch using LANG_NEUTRAL instead of LOCALE_SYSTEM_DEFAULT

Curl:
- (Support CURLOPT_SSLCERT_BLOB for cert strings)

Date:
- (Regression Incorrect difference after timezone change)
- (Interval serialization regression since 7.3.14 / 7.4.2)
- (Incorrect timezone transition details for POSIX data)
- (Missing second with inverted interval)
- Speed up finding timezone offset information
- (date_create_from_format misses leap year)
- (DateTimeZone::getTransitions() truncated)
- (Wrong diff between 2 dates in different timezones)
- (Missing second with inverted interval)
- (DateTimeZone silently falls back to UTC when providing an offset with seconds)
- (Regression in 8.1: add() now truncate ->f)
- (Date interval calculation not correct)
- (Incorrect difference using DateInterval)
- (date_diff() function returns false result)
- (dst not handled past 2038)
- (Wrong date diff)
- (DateTime. diff returns negative values)
- (date_diff on two dates with timezone set localised returns wrong results)
- (Incorrect date from timestamp)
- (Extra day on diff between begin and end of march 2016)
- (DateTime::diff confuse on timezone 'Asia/Tokyo')
- (Datetime add not realising it already applied DST change)
- (DateTimeImmutable::getTimestamp() triggers DST switch in incorrect time)
- (Handling DST transitions correctly)
- (Date diff is bad calculated, in same time zone)
- (DateTime::add does only care about backward DST transition, not forward)
- (DateTime->diff having issues with leap days for timezones ahead of UTC)
- (Date difference varies according day time)
- (DateTime's diff DateInterval incorrect in timezones from UTC+01:00 to UTC+12:00)
- (diff makes wrong in hour for Asia/Tehran)
- (DateTime::diff() generates months differently between time zones)
- (timelib mishandles future timestamps (triggered by 'zic -b slim'))
- (Invalid date time created (with day "00"))
- (DateTime calculate wrong with DateInterval)
- (DateTime objects behave incorrectly around DST transition)
- (DateTime(Immutable)::sub around DST yield incorrect time)

DBA:
- (TokyoCabinet driver leaks memory)

DOM:
- (DOMElement::setIdAttribute() called twice may remove ID)

FFI:
- ("TYPE *" shows unhelpful message when type is not defined)

Filter:
- (FILTER_FLAG_IPV6/FILTER_FLAG_NO_PRIV|RES_RANGE failing)

FPM:
- (Future possibility for heap overflow in FPM zlog)
- (PHP-FPM oob R/W in root process leading to privilege escalation) (CVE-2021-21703)
- Added openmetrics status format
- Enable process renaming on macOS
- Added pm.max_spawn_rate option to configure max spawn child processes rate
- (Events port mechanism)

FTP:
- Convert resource<ftp> to object \FTP\Connection

GD:
- (libpng warning from imagecreatefromstring)
- Convert resource<gd font> to object \GdFont
- Added support for Avif image

hash:
- Implemented FR #68109 (Add MurmurHash V3)
- Implemented FR #73385 (Add xxHash support)

JSON:
- (Change of $depth behaviour in json_encode() on PHP 8.1)

LDAP:
- Convert resource<ldap link> to object \LDAP\Connection
- Convert resource<ldap result> to object \LDAP\Result
- Convert resource<ldap result entry> to object \LDAP\ResultEntry

MBString:
- (mbstring may use pointer from some previous request)
- (mb_detect_encoding() regression)
- (mb_detect_encoding misdetcts ASCII in some cases)
- (mb_detect_encoding() segfaults when 7bit encoding is specified)

MySQLi:
- (Emulate mysqli_fetch_all() for libmysqlclient)
- (Replace language in APIs and source code/docs)
- (Add option to specify LOAD DATA LOCAL white list folder (including libmysql))

MySQLnd:
- (Crash (Bus Error) in mysqlnd due to wrong alignment)
- (PDO uses too much memory)

Opcache:
- (Incorrect JIT code for ADD with a reference to array)
- (Memory leak in PHPUnit with functional JIT)
- (infinite loop in building cfg during JIT compilation)
- (Wrong result with pow operator with JIT enabled)
- (Intermittent property assignment failure with JIT enabled)
- (Assertion `zv != ((void *)0)' failed for "preload" with JIT)
- (building opcache with phpize fails)
- (opcache header not installed)
- Added inheritance cache

OpenSSL:
- ($tag argument of openssl_decrypt() should accept null/empty string)
- Bump minimal OpenSSL version to 1.0.2

PCRE:
- (PCRE2 10.35 JIT performance regression)
- Bundled PCRE2 is 10.37

PDO:
- (PDO_MYSQL: PDO::PARAM_LOB does not bind to a stream for fetching a BLOB)

PDO MySQL:
- (PDO::lastInsertId() return wrong)
- (PDO discards error message text from prepared statement)

PDO OCI:
- (Support 'success with info' at connection)

PDO ODBC:
- Implement PDO_ATTR_SERVER_VERSION and PDO_ATTR_SERVER_INFO for PDO::getAttribute()

PDO PgSQL:
- (pdo_pgsql: Inconsitent boolean conversion after calling closeCursor())

PDO SQLite:
- (Proper data-type support for PDO_SQLITE)

PgSQL:
- (pg_end_copy still expects a resource)
- Convert resource<pgsql link> to object \PgSql\Connection
- Convert resource<pgsql result> to object \PgSql\Result
- Convert resource<pgsql large object> to object \PgSql\Lob

Phar:
- Use SHA256 by default for signature
- Add support for OpenSSL_SHA256 and OpenSSL_SHA512 signature

phpdbg:
- (unknown help topic causes assertion failure)

PSpell:
- Convert resource<pspell> to object \PSpell\Dictionary
- Convert resource<pspell config> to object \PSpell\Config

readline:
- (invalid read in readline completion)

Reflection:
- (ArgumentCountError when getting default value from ReflectionParameter with new)
- (PHP 8.1: ReflectionClass->getTraitAliases() crashes with Internal error)
- (Enum: ReflectionMethod->getDeclaringClass() return a ReflectionClass)
- (Make ReflectionEnum and related class non-final)
- (ReflectionProperty::getDefaultValue() returns current value for statics)
- (ReflectionProperty::__toString() renders current value, not default value)
- (ReflectionAttribute is not a Reflector)
- (no way to determine if Closure is static)
- Implement ReflectionFunctionAbstract::getClosureUsedVariables

Shmop:
- (shmop_open won't attach and causes php to crash)

SimpleXML:
- (Segfault in zif_simplexml_import_dom)

SNMP:
- Implement SHA256 and SHA512 for security protocol

Sodium:
- Added the XChaCha20 stream cipher functions
- Added the Ristretto255 functions, which are available in libsodium 1.0.18

SPL:
- (SplFileObject::fgetcsv incorrectly returns a row on premature EOF)
- (Recursive SplFixedArray::setSize() may cause double-free)
- (LimitIterator + SplFileObject regression in 8.0.1)
- (Special json_encode behavior for SplFixedArray)
- ("Notice: Undefined index" on unset() ArrayObject non-existing key)
- (FilesystemIterator::FOLLOW_SYMLINKS remove KEY_AS_FILE from bitmask)

Standard:
- (gethostbyaddr('::1') returns ip instead of name after calling some other method)
- (Incorrectly using libsodium for argon2 hashing)
- (PHP 7.3+ memory leak when unserialize() is used on an associative array)
- (Serialization is unexpectedly allowed on anonymous classes with __serialize())
- (hrtime breaks build on OSX before Sierra)
- (method_exists on Closure::__invoke inconsistency)

Streams:
- (stream_isatty emits warning with attached stream wrapper)

XML:
- (special character is breaking the path in xml function) (CVE-2021-21707)
- (XML_OPTION_SKIP_WHITE strips embedded whitespace)

Zip:
- (ZipArchive::extractTo() may leak memory)
- (Dirname ending in colon unzips to wrong dir)
- (ZipArchive::extractTo extracts outside of destination) (CVE-2021-21706)
- (ZipArchive::getStream doesn't use setPassword)