Jim,
We have code that operates on tables that can be altered by users of the
application (effectively storing different types of user data for each
client). Some routines fetch results with PDO::FETCH_NUM as opposed to
PDO::FETCH_ASSOC (or others), particularly when returning large amounts
of data and performing manipulations on it in the code as well.
columnCount can be useful here. (In fact, it comes from the mysql
library directly, if I'm reading the code correctly.)
-Matt
On 09/10/2012 10:57 AM, Jim Giner wrote:
On 9/10/2012 10:53 AM, Graham H. wrote:
I think it's so that you could write functions as generically as
possible.
So you don't have to pass in the number of columns or hard code in
values
for number of columns, you can dynamically check the column count for
each
result set that gets passed in. That's my guess.
On Mon, Sep 10, 2012 at 8:51 AM, Jim Giner
<jim.giner@xxxxxxxxxxxxxxxxxx>wrote:
On 9/10/2012 10:49 AM, Bastien Koert wrote:
On Mon, Sep 10, 2012 at 9:48 AM, Jim Giner
<jim.giner@xxxxxxxxxxxxxxxxxx>
wrote:
Reading up on the pdostatement class. Wondering what the intent
of the
columnCount function is. I mean, aren't the number of columns in a
result
known when you write the query? Granted, you might have some very
complex
query that you may not know the number, but for most queries you will
know
the columns you are expecting. So - what am I not seeing?
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It might be for those cases where you run a select * from ...
But - again - one already knows how many fields are in that table
when
one writes the query...
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I have not yet had a design where the results of queries could be
handled generically. Yes I may save some coding time in one way, but
for each field in a result the handling is not usually the same,
therefore my code would have to specify unique field names at some
point. This would only apply to a query that used * instead of
distinct names too.
To me it seems a function with rather limited use.
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