Question

My array is given below. Which contains more than one arrays.

Array
(
[0] => Array
    (
        [user_id] => 1
        [name] => name1
    )

[1] => Array
    (
        [user_id] => 2
        [name] => name2
    )
[2] => Array
    (
        [user_id] => 2
        [name] => name2
    )
[3] => Array
    (
        [user_id] => 3
        [name] => name3
    )

)<br/>

I need arrays which has more than one occurence.In this case

Array
(
    [user_id] => 2
    [name] => name2
)

Answer 1

Try this.

function get_multi_occur($my_array)
{
    foreach ($my_array as $id => $a) {
        $key = $a[user_id] . $a[name];
        if ($s[$key]['cnt'] == 0) {
            $s[$key]['cnt'] = 1;
            $s[$key]['id'] = $id;
        } else {
            $s[$key]['cnt']++;
        }
    }
    foreach ($s as $r) {
        if ($r['cnt'] >= 2) {
            $ret[] = $my_array[$r[id]];
        }
    }
    return $ret;
}