Jason,
Look into the pg_result() function. You would use it something like
this:
$q = pg_Exec("SELECT id FROM article WHERE id=(SELECT MAX(id) FROM
article)");
$maxid = pg_result($q,0,0); # pg_result($result,$row,$column_num)
echo "The highest id is ". $maxid[0];
Hope this helps.
Chris Ryan
chris@xxxxxxxxxxxxxxx
Jason wrote:
>
> Hi, I want to try and optimize my calls to postgreSQL from PHP. If
> I only need one field from a select statement, what should I use? I am
> currently using:
> $q = pg_Exec("SELECT id FROM article WHERE id=(SELECT MAX(id)
> FROM article)");
> $maxid = pg_fetch_array($q, 0);
> echo "The highest id is ". $maxid[0];
> What can I use besides an array to get a single value? In general, using
> a single variable always saves more memory than using an array? Thank
> you.
> Jason
>
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