excluding values from a foreach loop

Question

I have the following code.. and I know it's probably all wrong, but I haven't dealt with foreach loops before.

$last_names = regapiGetLastNames( NULL, -1 );
foreach ($last_names as $name => $last_name_id)
    $exclude = array('11196','11195','11198','11197');
    if(!in_array($name->last_name_id, $exclude)):
    print '<option value="'.$last_name_id.'">'.$name.'</option>';

Obviously its going wrong somewhere, any help pls?

Answer 1

If the IDs are array values, then you can also use array_diff to filter them:

$last_names = regapiGetLastNames( NULL, -1 );

$exclude = array('11196','11195','11198','11197');
$last_names = array_diff($last_names, $exclude);

foreach ($last_names as $name => $last_name_id) {
    print '<option value="'.$last_name_id.'">'.$name.'</option>';
}

Answer 2

$last_names = regapiGetLastNames( NULL, -1 );
$exclude = array('11196','11195','11198','11197');
foreach ($last_names as $name => $last_name_id)
{
    if(!in_array($name->last_name_id, $exclude))
        print '<option value="'.$last_name_id.'">'.$name.'</option>';
}

You need the braces for a multiline loop. also, move the array declaration outside the loop