[thelist] How to store data in multidimensional array in a loop (PHP)
Stefan Schwarzer
st.schwarzer at geois.de
Wed Sep 19 01:24:57 CDT 2007
Hi there,
I need to store three pieces of data - a result of a SQL query - in a
multidimensional array, but don't really succeed. Sometimes it works,
but then the output doesn't work accordingly.
My SQL result comes with something like this:
Code: ( text )
Africa | y2000 | 9430
Africa | y2005 | 9678
Europe | y2000 | 2314
where there are 6 regions and multiple years.
Last thing I came up with was this for stocking the data in the array:
Code: ( php )
$sum_pop_total_dataset[] = array($row['reg_name'] => array($row
['year'], $row['popt']));
That seemed to work. But then the output function went a bit wrong:
Code: ( php )
while (list($key1) = each ($sum_pop_total_dataset))
{
echo "<br />key1: ".$key1;
while (list($key2, $value) = each ($sum_pop_total_dataset[$key1]))
{
echo "<br />key2: ".$key2." value: ".$value[0];
}
}
Code: ( html4strict )
key1: 0
key2: North America value: y_2005
key1: 1
key2: Europe value: y_2005
key1: 2
key2: Asia + Pacific value: y_2005
So, it seemed that the allocation of the SQL result to the principal
variable didn't work correctly. But if I take the [] away from
$sum_pop_total_dataset[]*= ..., than the variable is being re-
initialized at each time.
Can someone give me a hint what I should do?
Thanks a lot!
Stef
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