Network Functions
PHP Manual

openlog

Open connection to system logger

Description

true openlog(string $prefix, int $flags, int $facility)

openlog opens a connection to the system logger for a program.

The use of openlog is optional. It will automatically be called by syslog if necessary, in which case prefix will default to the empty string.

Parameters

prefix

The string prefix is added to each message.

flags

Bitmask of the following constants:

  • LOG_CONS
  • LOG_NDELAY
  • LOG_ODELAY
  • LOG_NOWAIT
  • LOG_PERROR
  • LOG_PID

facility

The facility argument is used to specify what type of program is logging the message. This lets the configuration file specify that messages from different facilities will be handled differently. Must be one of the following constants:

  • LOG_AUTH
  • LOG_AUTHPRIV
  • LOG_CRON
  • LOG_DAEMON
  • LOG_KERN
  • LOG_LOCAL[0-7]
  • LOG_LPR
  • LOG_MAIL
  • LOG_NEWS
  • LOG_SYSLOG
  • LOG_USER
  • LOG_UUCP

Note: This parameter is ignored on Windows.

Return Values

Always returns true.

Changelog

Version Description
8.2.0 The function now always returns true. Previously it returned false on failure.

See Also

  • syslog
  • closelog