Re: Probably very easy to do, but for some reason...
- From: petersprc <petersprc@xxxxxxxxx>
- Date: Tue, 29 Jul 2008 14:16:07 -0700 (PDT)
Hi,
On Jul 29, 1:58 pm, paulf.john...@xxxxxxxxx wrote:
Hi,
For some reason, my brain has gone to mush on a couple of things. Any
help would be appreciated.
I have an array and a field passed into a function (call it $v) which
is a string composed of comma sep values.
foo = array("one"=>1, "two", "three", "four", "five");
$ex = explode("," $v);
$newtext = "";
foreach ($ex as $e)
{
if ($e != "0")
$newtext .= " : " . $foo[$e];
}
The problem is that $e here is not being interpreted how I'd expect
(I'd assume it to be a number). Do I need to cast $e as an int or is
there something I'm missing?
You may want to do $e !== '0' to match the value and type exactly
without type conversions. You might occasionally get slightly
unintuitive results with regular comparison, e.g.: The expression
('-000' == '0') is true.
Try print_r on $e to check the unexpected result.
A related problem comes from an sql query.
mysql_fetch_rows returns an array (bar). I pass this to another
function. Next I try to iterate through.
The array appears to be a 2D array.
for ($m = 0; $m < count($bar); $m++)
{
for ($i = 0; $i < sizeof($bar[0]); $i++)
{
echo $bar['0']['3']; // works fine
echo $bar['0'][$i]; // doesn't work - same reason as above I'd
imagine
}
}
Probably a really simple answer, but one I can't figure out.
Final one - inserting an array into a table. I can't see anything
about this, but if I have an array which marries up exactly with the
fields in a table, can I just use "insert into tablename(*) values
($array) where ID=some_id"?
You can use MDB2_AUTOQUERY_INSERT to compose and execute a DML
statement from a value array.
Thanks for helping me on these!
TTFN
Paul
--
Sie können mich aufreizen und wirklich heiß machen!
.
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- From: paulf . johnson
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