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);
}
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