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php-db | 2001041

RE: [PHP-DB] odbc_fetch_row From: Francois Legare (flegare <email protected>)
Date: 04/13/01

maybe you could try odbc_num_rows($yourResultID)
this will return 0 if there is nothing in the result set or the number of
rows otherwise

look in the php manual for more info
http://www.php.net/manual/en/function.odbc-num-rows.php

note that it might return -1 (thus not work as intended) with some drivers,
look in the user contributed notes at the bottom of the manual page, there
seems to be a few solution to that -1 problem

Francois Legare
flegare <email protected>
Vancouver BC Canada
604.261.1320

> -----Original Message-----
> From: Randall Barber [mailto:rdb55 <email protected>]
> Sent: April 13, 2001 3:30 PM
> To: php-db <email protected>
> Subject: [PHP-DB] odbc_fetch_row
>
>
> When I run a query, even if it is empty I still get a valid
> identifier for the result.
>
> How do I determine that there is nothing in the result, even
> though the result is valid (just empty)?
>
> I thought about odbc_fetch_row, but that moves the pointer
> forward and I don't want that; there may be valid info.
> I tried odbc_result'ing a COLUMN and it returns NULL not error,
> so I can't test against that.
>
> One thought is to see if all columns in my query are NULL and
> then "No rows were found". Is there a simpler way?
>
> How does odbc_result_all determine there is nothing present?
>
> Thanks
> RDB
> 

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