&reftitle.constants; &extension.constants.core; <function>openlog</function> 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
<function>openlog</function> 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 reserved for local use, not available in Windows LOG_LOCAL1 reserved for local use, not available in Windows LOG_LOCAL2 reserved for local use, not available in Windows LOG_LOCAL3 reserved for local use, not available in Windows LOG_LOCAL4 reserved for local use, not available in Windows LOG_LOCAL5 reserved for local use, not available in Windows LOG_LOCAL6 reserved for local use, not available in Windows LOG_LOCAL7 reserved for local use, 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
<function>syslog</function> 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
<function>dns_get_record</function> Options Constant Description DNS_A IPv4 Address Resource DNS_A6 Defined as part of early IPv6 but downgraded to historic by RFC 6563 DNS_CAA Certification Authority Authorization Resource (available as of PHP 7.0.16 and 7.1.2) DNS_MX Mail Exchanger Resource DNS_CNAME Alias (Canonical Name) Resource DNS_NAPTR Naming Authority Pointer 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_SRV Service locator 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.