Folgende Konstanten werden von dieser Erweiterung definiert und stehen nur zur Verfügung, wenn die Erweiterung entweder statisch in PHP kompiliert oder dynamisch zur Laufzeit geladen wurde.
ODBC_TYPE
    (string)
   ODBC_BINMODE_PASSTHRU
    (int)
   ODBC_BINMODE_RETURN
    (int)
   ODBC_BINMODE_CONVERT
    (int)
   SQL_ODBC_CURSORS
    (int)
   SQL_CUR_USE_DRIVER
    (int)
   SQL_CUR_USE_IF_NEEDED
    (int)
   SQL_CUR_USE_ODBC
    (int)
   SQL_CONCURRENCY
    (int)
   SQL_CONCUR_READ_ONLY
    (int)
   SQL_CONCUR_LOCK
    (int)
   SQL_CONCUR_ROWVER
    (int)
   SQL_CONCUR_VALUES
    (int)
   SQL_CURSOR_TYPE
    (int)
   SQL_CURSOR_FORWARD_ONLY
    (int)
   SQL_CURSOR_KEYSET_DRIVEN
    (int)
   SQL_CURSOR_DYNAMIC
    (int)
   SQL_CURSOR_STATIC
    (int)
   SQL_KEYSET_SIZE
    (int)
   SQL_CHAR
    (int)
   SQL_VARCHAR
    (int)
   SQL_LONGVARCHAR
    (int)
   SQL_WCHAR
    (int)
   SQL_WVARCHAR
    (int)
   SQL_WLONGVARCHAR
    (int)
   SQL_DECIMAL
    (int)
   SQL_NUMERIC
    (int)
   SQL_BIT
    (int)
   SQL_TINYINT
    (int)
   SQL_SMALLINT
    (int)
   SQL_INTEGER
    (int)
   SQL_BIGINT
    (int)
   SQL_REAL
    (int)
   SQL_FLOAT
    (int)
   SQL_DOUBLE
    (int)
   SQL_BINARY
    (int)
   SQL_VARBINARY
    (int)
   SQL_LONGVARBINARY
    (int)
   SQL_DATE
    (int)
   SQL_TIME
    (int)
   SQL_TIMESTAMP
    (int)
   SQL_TYPE_DATE
    (int)
   SQL_TYPE_TIME
    (int)
   SQL_TYPE_TIMESTAMP
    (int)
   SQL_BEST_ROWID
    (int)
   SQL_ROWVER
    (int)
   SQL_SCOPE_CURROW
    (int)
   SQL_SCOPE_TRANSACTION
    (int)
   SQL_SCOPE_SESSION
    (int)
   SQL_NO_NULLS
    (int)
   SQL_NULLABLE
    (int)
   SQL_INDEX_UNIQUE
    (int)
   SQL_INDEX_ALL
    (int)
   SQL_ENSURE
    (int)
   SQL_QUICK
    (int)
   SQL_FETCH_FIRST
    (int)
   SQL_FETCH_NEXT
    (int)
   