PHP 8.1.8

What's new in this version:

Core:
- Fixed bug GH-8338 (Intel CET is disabled unintentionally)
- Fixed leak in Enum::from/tryFrom for internal enums when using JIT
- Fixed calling internal methods with a static return type from extension code
- Fixed bug GH-8655 (Casting an object to array does not unwrap refcount=1 references)
- Fixed potential use after free in php_binary_init()

CLI:
- Fixed GH-8827 (Intentionally closing std handles no longer possible)

COM:
- Fixed bug GH-8778 (Integer arithmethic with large number variants fails)

Curl:
- Fixed CURLOPT_TLSAUTH_TYPE is not treated as a string option

Date:
- Fixed bug #72963 (Null-byte injection in CreateFromFormat and related functions)
- Fixed bug #74671 (DST timezone abbreviation has incorrect offset)
- Fixed bug #77243 (Weekdays are calculated incorrectly for negative years)
- Fixed bug #78139 (timezone_open accepts invalid timezone string argument)

Fileinfo:
- Fixed bug #81723 (Heap buffer overflow in finfo_buffer). (CVE-2022-31627)

FPM:
- Fixed bug #67764 (fpm: syslog.ident don't work)

GD:
- Fixed imagecreatefromavif() memory leak

MBString:
- mb_detect_encoding recognizes all letters in Czech alphabet
- mb_detect_encoding recognizes all letters in Hungarian alphabet
- Fixed bug GH-8685 (pcre not ready at mbstring startup)
- Backwards-compatible mappings for 0x5C/0x7E in Shift-JIS are restored, after they had been changed in 8.1.0

ODBC:
- Fixed handling of single-key connection strings

OPcache:
- Fixed bug GH-8591 (tracing JIT crash after private instance method change)

OpenSSL:
- Fixed bug #50293 (Several openssl functions ignore the VCWD)
- Fixed bug #81713 (NULL byte injection in several OpenSSL functions working with certificates)

PDO_ODBC:
- Fixed handling of single-key connection strings

Zip:
- Fixed bug GH-8781 (ZipArchive::close deletes zip file without updating stat cache)