Log Message:
lang/php81: update to 8.1.21

PHP 8.1.21 (2023-07-06)

- CLI:
  . Fixed bug GH-11246 (cli/get_set_process_title fails on MacOS).
    (James Lucas)

- Core:
  . Fixed build for the riscv64 architecture/GCC 12. (Daniil Gentili)

- Curl:
  . Fixed bug GH-11433 (Unable to set CURLOPT_ACCEPT_ENCODING to NULL).
    (nielsdos)

- DOM:
  . Fixed bugs GH-11288 and GH-11289 and GH-11290 and GH-9142 (DOMExceptions
    and segfaults with replaceWith). (nielsdos)
  . Fixed bug GH-10234 (Setting DOMAttr::textContent results in an empty
    attribute value). (nielsdos)
  . Fix return value in stub file for DOMNodeList::item. (divinity76)
  . Fix spec compliance error with '*' namespace for
    DOMDocument::getElementsByTagNameNS. (nielsdos)
  . Fix DOMElement::append() and DOMElement::prepend() hierarchy checks.
    (nielsdos)
  . Fixed bug GH-11347 (Memory leak when calling a static method inside an
    xpath query). (nielsdos)
  . Fixed bug #67440 (append_node of a DOMDocumentFragment does not reconcile
    namespaces). (nielsdos)
  . Fixed bug #81642 (DOMChildNode::replaceWith() bug when replacing a node
    with itself). (nielsdos)
  . Fixed bug #77686 (Removed elements are still returned by getElementById).
    (nielsdos)
  . Fixed bug #70359 (print_r() on DOMAttr causes Segfault in
    php_libxml_node_free_list()). (nielsdos)
  . Fixed bug #78577 (Crash in DOMNameSpace debug info handlers). (nielsdos)
  . Fix lifetime issue with getAttributeNodeNS(). (nielsdos)
  . Fix "invalid state error" with cloned namespace declarations. \ 
(nielsdos)
  . Fixed bug #55294 and #47530 and #47847 (various namespace reconciliation
    issues). (nielsdos)
  . Fixed bug #80332 (Completely broken array access functionality with
    DOMNamedNodeMap). (nielsdos)

- Opcache:
  . Fix allocation loop in zend_shared_alloc_startup(). (nielsdos)
  . Access violation on smm_shared_globals with ALLOC_FALLBACK. (KoudelkaB)
  . Fixed bug GH-11336 (php still tries to unlock the shared memory ZendSem
    with opcache.file_cache_only=1 but it was never locked). (nielsdos)

- OpenSSL:
  . Fixed bug GH-9356 Incomplete validation of IPv6 Address fields in
    subjectAltNames (James Lucas, Jakub Zelenka).

- PGSQL:
  . Fixed intermittent segfault with pg_trace. (David Carlier)

- Phar:
  . Fix cross-compilation check in phar generation for FreeBSD. (peter279k)

- SPL:
  . Fixed bug GH-11338 (SplFileInfo empty getBasename with more than one
    slash). (nielsdos)

- Standard:
  . Fix access on NULL pointer in array_merge_recursive(). (ilutov)
  . Fix exception handling in array_multisort(). (ilutov)