Programming PHP, 2nd Edition

Name

openlog

Synopsis

int openlog(string identity, int options, int facility)

Opens a connection to the system logger. Each message sent to the logger with a subsequent call to syslog( ) is prepended by identity. Various options can be specified by options; OR any options you want to include. The valid options are:

LOG_CONS	If an error occurs while writing to the system log, write the error to the system console.
LOG_NDELAY	Open the system log immediately.
LOG_ODELAY	Delay opening the system log until the first message is written to it.
LOG_PERROR	Print this message to standard error in addition to writing it to the system log.
LOG_PID	Include the PID in each message.

The third parameter, facility, tells the system log what kind of program is logging to the system log. The following facilities are available:

LOG_AUTH	Security and authorization errors (deprecated; if LOG_AUTHPRIV is available, use it instead)
LOG_AUTHPRIV	Security and authorization errors
LOG_CRON	Clock daemon (cron and at) errors
LOG_DAEMON	Errors for system daemons not given their own codes
LOG_KERN	Kernel errors
LOG_LPR	Line printer subsystem errors
LOG_MAIL	Mail errors
LOG_NEWS	USENET news system errors
LOG_SYSLOG	Errors generated internally by syslogd
LOG_AUTHPRIV	Security and authorization errors
LOG_USER	Generic user-level errors
LOG_UUCP	UUCP errors