Эти функции всегда доступны.
Для использования этих функций не требуется проведение установки,
поскольку они являются частью ядра PHP.
Поведение этих функций зависит от установок в php.ini.
Таблица 1. Network Configuration Options
Name | Default | Changeable | Changelog |
---|
define_syslog_variables | "0" | PHP_INI_ALL | |
Для подробного описания констант
PHP_INI_*, обратитесь к документации функции
ini_set().
Краткое разъяснение конфигурационных
директив.
- define_syslog_variables
boolean
Whether or not to define the various syslog variables (e.g. $LOG_PID,
$LOG_CRON, etc.). Turning it off is a good idea performance-wise. At
runtime, you can define these variables by calling
define_syslog_variables().
Данное расширение не определяет никакие типы ресурсов.
Перечисленные ниже константы всегда доступны как часть ядра PHP.
Таблица 2. openlog() Options
Constant | Description |
---|
LOG_CONS |
if there is an error while sending data to the system logger,
write directly to the system console
|
LOG_NDELAY |
open the connection to the logger immediately
|
LOG_ODELAY |
(default) delay opening the connection until the first
message is logged
|
LOG_NOWAIT | |
LOG_PERROR | print log message also to standard error |
LOG_PID | include PID with each message |
Таблица 3. openlog() Facilities
Constant | Description |
---|
LOG_AUTH |
security/authorization messages (use LOG_AUTHPRIV instead
in systems where that constant is defined)
|
LOG_AUTHPRIV | security/authorization messages (private) |
LOG_CRON | clock daemon (cron and at) |
LOG_DAEMON | other system daemons |
LOG_KERN | kernel messages |
LOG_LOCAL0 ... LOG_LOCAL7 | reserved for local use, these are not available in Windows |
LOG_LPR | line printer subsystem |
LOG_MAIL | mail subsystem |
LOG_NEWS | USENET news subsystem |
LOG_SYSLOG | messages generated internally by syslogd |
LOG_USER | generic user-level messages |
LOG_UUCP | UUCP subsystem |
Таблица 4. syslog() Priorities (in descending order)
Constant | Description |
---|
LOG_EMERG | system is unusable |
LOG_ALERT | action must be taken immediately |
LOG_CRIT | critical conditions |
LOG_ERR | error conditions |
LOG_WARNING | warning conditions |
LOG_NOTICE | normal, but significant, condition |
LOG_INFO | informational message |
LOG_DEBUG | debug-level message |
Таблица 5. dns_get_record() Options
Constant | Description |
---|
DNS_A | IPv4 Address Resource |
DNS_MX | Mail Exchanger Resource |
DNS_CNAME | Alias (Canonical Name) Resource |
DNS_NS | Authoritative Name Server Resource |
DNS_PTR | Pointer Resource |
DNS_HINFO | Host Info Resource (See IANA's
Operating System Names
for the meaning of these values) |
DNS_SOA | Start of Authority Resource |
DNS_TXT | Text Resource |
DNS_ANY | Any Resource Record. On most systems
this returns all resource records, however
it should not be counted upon for critical
uses. Try DNS_ALL instead. |
DNS_AAAA | IPv6 Address Resource |
DNS_ALL | Iteratively query the name server for
each available record type. |