> At 08:52 20.03.2003, cpaul said:
> --------------------[snip]--------------------
> >ok thanks - that makes sense. sort of doesn't solve my problem, because
> >if my function receives an enumerated array, i want it to treat it as an
> >associative array, using the value as the key.
> --------------------[snip]--------------------
ernest wrote:
> What would be the value then?
>
> If I get you correctly, you would treat an array that comes like
> [0] => entry 0
> [1] => entry 1
> [2] => entry 2
like this:
'entry 0' => 'entry 0'
'entry 1' => 'entry 1'
'entry 2' => 'entry 2'
> What happens when there are duplicate values in the source array? You will
> loose entries on duplicate values.
the source array is based on a directory listing, so i don't think there's
a possibility of that happening?
> You can't tell with absolute certainty if an array is enumerated, or built
> as associative array. Take this example:
> $a = array('one','two','three');
> $b = array(); $b[0] = 'one'; $b[1] = 'two'; $b[2] = 'three';
> $c = array(0 => 'one', 1 => 'two', 2 => 'three');
>
> Which one would you believe is enumerated, and which one is associative?
they'd all be enumerated, except perhaps $c -- but i've grown :) and now
understand that $c winds up being an enumerated array.. or is it?
in my code....
$q = mysql_query ( "SELECT production_id, title FROM productions ORDER BY title;"
);
$this->all_productions[""] = "";
while ( $row = mysql_fetch_array( $q ) ) {
$this->all_productions[$row["production_id"]] = $row["title"];
}
the array is kept in order when i foreach the array - wouldn't they sort
themselves into 0,1,2,3,4,5,etc if my while loop was populating an
enumerated array? or are all arrays in php actually a keyed hash?
> What you can do is walk the array keys and check if there is at least a
> single non-numeric key. If you found one the array is associative. If you
> found none it may be likely that the array is enumerated, but you can't be
> sure in a general way, except your application is designed in a way that
> uses always non-numeric keys for associative arrays.
thanks so much for all your input on this.
regards
--
chris paul
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