从php多维数组中选择数据

Question

I have a multidimensional array as follows:

$a = array (
   #id           num  name      full name
    0 => array ( 65, 'name-1', 'Name One' ),
    1 => array ( 76, 'name-2', 'Name Two' ),
    2 => array ( 82, 'name-3', 'Name Three' )
);

Now, if I want to select 'name-1' (name) I use $a[0][1] and to select 'Name Three' (full name) I use $a[2][2].

So, I can select the number, the name or the full name if I have the id in the array.

But what if I have the number or the name and I want to select the full name? how could I get it?

Thanks.

Answer 1

If with id you mean the num:

$num = // num you want to find
foreach ($a as $b) {
    if ($b[0] == $num) {
        $name = $b[1];
        $full = $b[2];
        break;
    }
}

If with id you mean #ID then:

$id = // id you want to find
$num = $a[$id][0];
$name = $a[$id][1];
$full = $a[$id][2];