Re: while question

Ashley Sheridan wrote:

On Mon, 2008-11-17 at 18:01 -0500, Craige Leeder wrote:

Ashley Sheridan wrote:

On Mon, 2008-11-17 at 17:47 -0500, Craige Leeder wrote:

Only thing to note with the foreach is that you are actually working on a copy of the array, so if you intend to modify it, pass it by reference. - Craige

Can you do that? I assume it would look like this: foreach(&$array as $a) {}

Close. It actually looks like this: foreach ($array as $key => &$value) {} This makes sense because for each iteration of the loop, PHP places a copy of the key in $key, and a copy of the value in $value. Therefor, you are specifying with this code that you want it to place a reference of the value into $value. - Craige

Ah, that could be very useful to know, thanks! Ash www.ashleysheridan.co.uk

foreach ($array as $key => $value) $value = a copy so won't change the original array $array[$key] = the original thus: foreach ($array as $key => $value) { $array[$key] = do_something_with($value); }