[UPHPU] pluck out of array with index without rebuilding

[Joseph Scott]

On Jan 15, 2009, at 9:29 PM, Wade Preston Shearer wrote:

> But if my food array looks like this…
>
> $food[] = array('id' => 1, 'name' => 'banana');
> $food[] = array('id' => 2, 'name' => 'taco');
> $food[] = array('id' => 3, 'name' => 'toast');
>
>
> …it's not possible unless you do this first…
>
> foreach($food as $item) {
> 	$food_notmulti[$item['id']] = $item['name'];
> }
>
>
> …to flatten it.
>
> Or am I wrong? Is there a way to "pluck" from the multi-dimensional  
> array where the ID is not an index?



One approach might be:

foreach ( $food as $index => $row ) {
	foreach ( $row as $key => $value ) {
		if ( $value == 'taco' ) {
			$found_taco = $food[$index];
			print_r( $found_taco );
		}
	}
}

If you don't know value needed to directly reference the data then  
you'll have to loop through until you find it.  I suspect folks have  
already written recursive array search functions that would do this in  
fairly generic way.


--
Joseph Scott
joseph at josephscott.org
http://josephscott.org/