Display messages in Drupal

Syntax:

4.6 – 5    drupal_set_message($message = NULL, $type = 'status') 6 – 8    drupal_set_message($message = NULL, $type = 'status', $repeat = TRUE)
Set a message which reflects the status of the performed operation. If the function is called with no arguments, this function returns all set messages without clearing them. Parameters $message The message should begin with a capital letter and always ends with a period '.'. $type The type of the message. One of the following values are possible: 'status' 'warning' 'error' $repeat If this is FALSE and the message is already set, then the message won't be repeated.