Description:
------------
On SQL Server 2005 when I execute a SELECT query to retrieve the content of a VARCHAR field with a specified length greater than 255 and less than MAX, the resulting value is truncated at a length of 255 characters.

Reproduce code:
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For testing purposes, I used a table created by the following SQL code:

CREATE TABLE [TESTTABLE](
	[id] [int] NOT NULL,
	[testvalue] [varchar](1000) NULL,
 CONSTRAINT [PK_TESTTABLE] PRIMARY KEY CLUSTERED 
(
	[id] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]

PHP test script code:

$conn = mssql_connect('localhost', 'testuser', 'testpassword');
mssql_select_db('testdb');
$string = 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa';
echo strlen($string) . '<br>';
mssql_query('INSERT INTO TESTTABLE (id, testvalue) VALUES (1, \'' . $string . '\')');
$result = mssql_query('SELECT testvalue FROM TESTTABLE WHERE id=1');
echo(strlen(mssql_result($result, 0, testvalue')));

Expected result:
----------------
Expected output of the PHP test script:

396
396

Actual result:
--------------
Actual output of the PHP test script:

255
396