新函数 PHP 内核 array_key_first() array_key_last() gc_status() hrtime() is_countable() net_get_interfaces() FastCGI 进程管理器 fpm_get_status() 日期和时间 DateTime::createFromImmutable() GNU 高精度 gmp_binomial() gmp_kronecker() gmp_lcm() gmp_perfect_power() 国际化相关函数 Normalizer::getRawDecomposition() normalizer_get_raw_decomposition() Spoofchecker::setRestrictionLevel() 轻量目录访问协议 ldap_add_ext() ldap_bind_ext() ldap_delete_ext() ldap_exop_refresh() ldap_mod_add_ext() ldap_mod_replace_ext() ldap_mod_del_ext() ldap_rename_ext() OpenSSL openssl_pkey_derive() Sockets socket_wsaprotocol_info_export() socket_wsaprotocol_info_import() socket_wsaprotocol_info_release()