 |
|
 PhpDig.net |
What is PhpDig?
PhpDig is a PHP MySQL based Web Spider & Search Engine. |
syslog
Description
The syslog() function sends messages to the system logger. On UNIX-like systems, this is generally syslogd (run man syslogd for more information). On the Windows family of operating systems, this is the event log. Not all flavors of the Windows operating systems have the event log facility - see your system's help files and manual for more information.
The priority argument is a combination of the level and facility of the message. The message level indicates the severity of the log message; the facility tells the system logger what kind of program is logging a message. The system logger then decides what to do with the message based on how it's configured to handle the various levels and facilities.
The priority argument is an integer value, but PHP provides a set of named constants to make the task of setting it easier. To combine the level constants with the facility constants, use the bitwise or (|) operator (for example, LOG_ERROR|LOG_AUTH_PRIV). The following tables list the levels and facilities.
| Level | Description |
|---|---|
| LOG_EMERG | The system is (or will soon be) unusable. Cross your fingers, get out your backups, and prepare for a long night. On Windows systems, this is represented as a message of the error type in the event log. |
| LOG_ALERT | Something bad has happened. You should fix it before something else goes wrong. On Windows systems, this is represented as a message of the warning type in the event log. |
| LOG_CRIT | A critical error has occurred. On Windows systems, this is represented as a message of the warning type in the event log. |
| LOG_ERR | A normal error has occurred. On Windows systems, this is represented as a message of the warning type in the event log. |
| LOG_WARNING | Something that looks a bit like an error has occurred. On Windows systems, this is represented as a message of the warning type in the event log. |
| LOG_NOTICE | Something normal but undesirable or significant has happened. On Windows systems, this is represented as a message of the warning type in the event log. |
| LOG_INFO | Log an informational message.On Windows systems, this is represented as a message of the information type in the event log. |
| LOG_DEBUG | Log a message to help with debugging. On Windows systems, this is represented as a message of the warning type in the event log. |
| Facility | Description |
|---|---|
| LOG_AUTH | Security and authorization messages (deprecated on most systems - use LOG_AUTHPRIV instead) |
| LOG_AUTHPRIV | Private security and authorization messages |
| LOG_CRON | Cron daemon |
| LOG_DAEMON | Miscellaneous system daemons |
| LOG_KERN | Kernel messages |
| LOG_LOCAL0 to LOG_LOCAL7 | Reserved for local use |
| LOG_LPR | Printer spool |
| LOG_MAIL | Mail subsystem |
| LOG_NEWS | News subsystem |
| LOG_SYSLOG | Reserved for messages generated internally by syslogd |
| LOG_USER | Miscellaneous user-level messages |
| LOG_UUCP | UUCP subsystem |
Note
LOG_USER is the only valid log type under Windows operating systems.
Caution
The message argument should not contain sequences such as %s that are recognized by the printf() function. Literal percent symbols (%) can be included in the log message by using two percent symbols in a row (%%).