Log Message:
lang/php81: update to 8.1.5

14 Apr 2022, PHP 8.1.5

- Core:
  . Fixed bug GH-8176 (Enum values in property initializers leak). (Bob)
  . Fixed freeing of internal attribute arguments. (Bob)
  . Fixed bug GH-8070 (memory leak of internal function attribute hash).
    (Tim Düsterhus)
  . Fixed bug GH-8160 (ZTS support on Alpine is broken). (Michael Voříšek)

- Filter:
  . Fixed signedness confusion in php_filter_validate_domain(). (cmb)

- Intl:
  . Fixed bug GH-8115 (Can't catch arg type deprecation when instantiating Intl
    classes). (ilutov)
  . Fixed bug GH-8142 (Compilation error on cygwin). (David Carlier)
  . Fixed bug GH-7734 (Fix IntlPartsIterator key off-by-one error and first
    key). (ilutov)

- MBString:
  . Fixed bug GH-8208 (mb_encode_mimeheader: $indent functionality broken).
    (cmb)

- MySQLi:
  . Fixed bug GH-8068 (mysqli_fetch_object creates inaccessible properties).
    (cmb)

- Pcntl:
  . Fixed bug GH-8142 (Compilation error on cygwin). (David Carlier)

- PgSQL:
  . Fixed result_type related stack corruption on LLP64 architectures. (cmb)
  . Fixed bug GH-8253 (pg_insert() fails for references). (cmb)

- Sockets:
  . Fixed Solaris builds. (David Carlier)

- SPL:
  . Fixed bug GH-8121 (SplFileObject - seek and key with csv file inconsistent).
    (cmb)
  . Fixed bug GH-8192 (Cannot override DirectoryIterator::current() without
    return typehint in 8.1). (Nikita)

- Standard:
  . Fixed bug GH-8048 (Force macOS to use statfs). (risner)