odbc_data_source

(PHP 4 >= 4.3.0, PHP 5)

odbc_data_source — Returns information about a current connection

array odbc_data_source ( resource $connection_id , int $fetch_type )

This function will return the list of available DNS (after calling it several times).

connection_id: The ODBC connection identifier, see odbc_connect() for details.
fetch_type: The fetch_type can be one of two constant types: SQL_FETCH_FIRST, SQL_FETCH_NEXT. Use SQL_FETCH_FIRST the first time this function is called, thereafter use the SQL_FETCH_NEXT.

Returns FALSE on error, and an array upon success.