Posted by Rik on 02/12/07 18:20

On Mon, 12 Feb 2007 18:43:26 +0100, Chuy08 <chuy08@yahoo.com> wrote:

> If I have a multidimensional array like the following:
>
> Array
> $records =3D> Array
> 0 =3D> [Product] 30 year, [Rate]6.0;
> 1 =3D> [Product] 30 year, [Rate]6.0;
> 2 =3D> [Product] Pay Option, [Rate]1.0;
> 3 =3D> [Product] Pay Option, [Rate]1.0;
>
> How could I flatten this to achieve an array that only has unique Prod=
uct
> values, basically removing $records['1] and $records['3'] in this =

> example?

Why does you example not contain a multidimensional array? This one is =

handled just fine by array_unique()...

You probably mean:
$records =3D array(
array('product' =3D> '30 year','rate'=3D> 6.0),
array('product' =3D> '30 year','rate'=3D> 6.0),
array('product' =3D> 'Pay option','rate'=3D> 1.0),
array('product' =3D> 'Pay option','rate'=3D> 1.0));

Quite some overhead, but workable (even preserves keys):
<?php
function array_unique_multi($array){
$copy =3D $array;
array_walk($array,create_function('&$v,$k','$v =3D serialize($v);'));
$array =3D array_unique($array);
return array_intersect_key($copy,$array);
}
?>

Be carefull not to have unserializable content in the array.
-- =

Rik Wasmus

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