Description
bool 
mysql_close ( [resource link_identifier] )
 
   mysql_close() closes the non-persistent connection to 
   the MySQL server that's associated with the specified link identifier. If 
   link_identifier isn't specified, the last opened 
   link is used.
  
   Using mysql_close() isn't usually necessary,
   as non-persistent open links are automatically closed at the end
   of the script's execution. See also
   freeing
   resources.