Pardon my sloppy explanation but here it is:

how can i sort an array based on key element ie.

key values are: a1, a2 ,a3 ..., b1, b2 ,b3, ...c1, c1, c3...
so doing this:
while (list($k, $v) = each($data)) {
for ($i=0; $i<count($k); $i++) {
echo "$k[0] = $v\n<br>";
will list all the $k $v .
a = foo
a = bar
b = another foo
and so on

Now, how can i sort it according to $k[0]
where $k[0] = a, than the same for all b's and so on.

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