Com function is just for Windows,I don't kown why some body like use it.:(
2009/8/27 Andrew Ballard <aballard@xxxxxxxxx>:
> On Wed, Aug 26, 2009 at 9:51 AM, David Stoltz<Dstoltz@xxxxxxx> wrote:
>> Sorry - I don't know what you mean by DB class?
>>
>> I'm using Microsoft SQL 2000....with this code:
>>
>> <?php
>> //create an instance of the ADO connection object
>> $conn = new COM ("ADODB.Connection")
>> or die("Cannot start ADO");
>> //define connection string, specify database driver
>> $connStr = "PROVIDER=SQLOLEDB;SERVER=xxxx;UID=xxx;PWD=xxxx;DATABASE=xxxx";
>> $conn->open($connStr); //Open the connection to the database
>>
>> $query = "SELECT * FROM eval_evaluations WHERE id = ".$_POST["eval"];
>>
>> $rs = $conn->execute($query);
>>
>> echo $rs->Fields(22); //this is where that particular field is NULL, and produces the error
>>
>> ....
>>
>
> Because you are using COM, you can't use PHP's empty(), isset(), or
> is_null() in your if(...) statement. I've not used COM for much in
> PHP, but I think you'll have to do something like this:
>
> switch (variant_get_type($rs->Fields(22)) {
> case VT_EMPTY:
> case VT_NULL:
> $q4 = '';
> break;
>
> case VT_UI1:
>
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