Description:
------------
Using PHP-5.5.24, unixODBC 2.3.2, IBM iSeriesAccess 1.1.0.2
odbc_fetch_array returns the field values as the array keys instead of the column names as expected.

Test script:
---------------
$odbc = odbc_connect('AS400', '', '');
$result = odbc_exec($odbc, "SELECT * FROM SYSIBM.SYSCHARSETS");
var_dump(odbc_fetch_array($result));


Expected result:
----------------
(result using PHP-5.5.23)
array(4) {
  ["CHARACTER_SET_SCHEMA"]=>
  string(18) "INFORMATION_SCHEMA"
  ["CHARACTER_SET_NAME"]=>
  string(8) "SQL_TEXT"
  ["DEFAULT_COLLATE_SCHEMA"]=>
  string(18) "INFORMATION_SCHEMA"
  ["DEFAULT_COLLATE_NAME"]=>
  string(8) "SQL_TEXT"
}


Actual result:
--------------
(result using PHP-5.5.24)
array(2) {
  ["INFORMATION_SCHEMA"]=>
  string(18) "INFORMATION_SCHEMA"
  ["SQL_TEXT"]=>
  string(8) "SQL_TEXT"
}