(PHP 4, PHP 5, PECL odbtp >= 1.1.1)
Close MS SQL Server connection
bool mssql_close ([ resource $link_identifier ] )
Closes the link to a MS SQL Server database that's associated with the specified link identifier. If the link identifier isn't specified, the last opened link is assumed.
Note that this isn't usually necessary, as non-persistent open links are automatically closed at the end of the script's execution.