After Connecting, you can execute a SQL statement and retrieve the results.

SELECT Procedure

You can execute queries using odbc_exec. This will return a resource that you can use to read results.

$stmt = odbc_exec($cnx, "SELECT ID, Leave_Type FROM [CData].[Employee Management].Leave_Types WHERE Leave_Type = 'Sick'");

Iterating over the Results

You can use odbc_fetch_array to fetch the next row as an array.

while ($row = odbc_fetch_array($stmt)) {
    echo "ID = ", $row["ID"], "\n";
    echo "Leave_Type = ", $row["Leave_Type"], "\n";
}