msql_list_tables() lists the databases available on the
specified link_identifier.
Parameters
link_identifier
The mSQL connection.
If not specified, the last link opened by msql_connect()
is assumed. If no such link is found, the function will try to establish a
link as if msql_connect() was called, and use it.
Return Values
Returns a result set which may be traversed with any function that fetches
result sets, such as msql_fetch_array(). On failure,
this function will return FALSE.
