get a certain type of elements from a array of objects

Question

I have a array of objects like this one:

Array
(
    [0] => stdClass Object
        (
            [art_id] => 76
            [title] => whatever
        )

    [1] => stdClass Object
        (
            [art_id] => 216
            [title] => blabla
        )

)

Can I somehow get a array with all art_id's from it, without having to iterate it?

(like array(76, 216))

csn you please clarify why you dont want to iterate it or at least explain what iterating means to you in the context of your question? — Gordon
– Gordon, Commented Jun 8, 2011 at 12:48

Lightness Races in Orbit · Accepted Answer · 2011-06-08 12:44:26Z

6

function getArtId($obj)
{
    return $obj->art_id;
}

$b = array_map("getArtId", $a);
print_r($b);

This is indirectly an iteration, but you do not need to write code for the loop yourself.

edited Jun 8, 2011 at 12:44

Lightness Races in Orbit

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answered Jun 8, 2011 at 12:35

Gaurav

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