xml-rpc is no longer bundled with the PHP source code as of PHP 8.0.
You'll need to get it from PECL. Many distro and third party repos may still ship it (tho the package name may have changed to reflect the move to PECL)
PHPのXML-RPCサポートはデフォルトでは有効となっていません。 XML-RPCサポートを有効にするには、PHPをコンパイルする際に設定オプション --with-xmlrpc[=DIR] を使用する必要があります。
xml-rpc is no longer bundled with the PHP source code as of PHP 8.0.
You'll need to get it from PECL. Many distro and third party repos may still ship it (tho the package name may have changed to reflect the move to PECL)