How to log error message in drupal

php drupal error-logging
ArK picture ArK · Nov 10, 2009 · Viewed 51.1k times · Source

How to log our own error messages(for ex: error due to invalid user date entry) which is generated in php program to drupal error log.

Answer

Pascal MARTIN picture Pascal MARTIN · Nov 10, 2009

You can use the watchdog function :

watchdog($type, $message, $variables = array(), $severity = WATCHDOG_NOTICE, $link = NULL)

Quoting the manual, the parameters are :

  • $type The category to which this message belongs.
  • $message The message to store in the log.
  • $variables Array of variables to replace in the message on display or NULL if message is already translated or not possible to translate.
  • $severity The severity of the message, as per RFC 3164
  • $link A link to associate with the message.

And the error levels can be found on the page of watchdog_severity_levels. For an error, you'll most probably use WATCHDOG_ERROR, or maybe even something more "critical", depending on the kind of error.

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