Description:
------------
In PHP-version 5.3.0 the odbc_autocommit function with second parameter filled in always returns false. We tested this with sql server and progress database. In PHP-version 5.2.10 we don't have this problem.

The actual result is the progress output from PHP 5.3.0.
The expected result is the progress output from PHP 5.2.10.

Reproduce code:
---------------
<?php

	function reporterror($con, $extramsg)
	{
		echo $extramsg.'<br>';
		$errnum = odbc_error($con);
		$errstr = odbc_errormsg ($con);
		echo 'error '.$errnum.' errmsg '.$errstr.'<br>';
	}

	function setisolationlevel($con, $level)
	{
		$statement = 'SET TRANSACTION ISOLATION LEVEL ' . $level;
		$res = odbc_exec ($con, $statement);
		if ($res === FALSE)
			reporterror($con, 'exec failed '.$statement);
	}

	function starttransaction($con)
	{
		$res = odbc_autocommit ($con, false);
		if ($res !==  TRUE)
			reporterror($con, 'odbc_autocommit false failed ');
	}

	function committransaction($con)
	{
		$res = odbc_commit($con);
		if ($res !== TRUE)
			reporterror($con, 'committransaction failed ');
				$res = odbc_autocommit ($con, true);
		$res = odbc_autocommit ($con, true);
		if ($res !==  TRUE)
			reporterror($con, 'odbc_autocommit true failed ');
	}


	function test1($con)
	{

		echo 'test 1<br>';

		setisolationlevel($con, 'READ UNCOMMITTED');
		starttransaction($con);
		$rs = odbc_exec ($con, "SELECT * from tbloctsequence where seqname = 'testdanny'");
		if ($rs === FALSE)
		{
			reporterror($con, 'exec failed');
			echo 'exec failed<br>';
		} else
		{
			echo 'exec succeeded<br>';
			for (;;)
			{
				$ar = odbc_fetch_array($rs);
				if ($ar === FALSE)
					break;
				else
				{
					print_r($ar);
					echo '<br>';
				}
			}

			odbc_free_result ($rs);
		}
		committransaction($con);
	}


	function test2($con)
	{

		echo 'test 2<br>';

		setisolationlevel($con, 'READ COMMITTED');
		starttransaction($con);
		$rs = odbc_exec ($con, "INSERT INTO tblLabelnamen (Naam) VALUES ('testdanny')" );
		if ($rs === FALSE)
		{
			reporterror($con, 'exec failed');
			echo 'exec failed<br>';
		} else
			echo 'exec succeeded<br>';
		committransaction($con);
	}



	$con = odbc_connect ( 'progresstest', 'test' , 'test');
//	$con = odbc_connect ( 'mssqltest', 'test' , 'test');

	if ($con == 0)
	{
		echo 'connect failed<br>';
	} else
	{
		echo 'connect succeeded<br>';
		test1($con);
		test2($con);

		odbc_close ($con );
	}



?>

Expected result:
----------------
connect succeeded
test 1
exec succeeded
test 2
exec succeeded


Actual result:
--------------
connect succeeded
test 1
odbc_autocommit false failed 
error ?-? errmsg 
exec succeeded
test 2
exec failed SET TRANSACTION ISOLATION LEVEL READ COMMITTED
error S1000 errmsg [DataDirect][ODBC Progress OpenEdge Wire Protocol driver][OPENEDGE]Cannot change the transaction isolation level while in a transaction. (13742)
odbc_autocommit false failed 
error S1000 errmsg [DataDirect][ODBC Progress OpenEdge Wire Protocol driver][OPENEDGE]Cannot change the transaction isolation level while in a transaction. (13742)
exec failed
error S1000 errmsg [DataDirect][ODBC Progress OpenEdge Wire Protocol driver][OPENEDGE]Statement not allowed in readonly isolation level (7671)
exec failed