Compare values

[zoliky]

Array  // print_r($array1); output
(
    [0] => 1
    [1] => 3
)

Array  // print_r($array2); output
(
    [0] => Array
        (
            [uid] => 1
        )

[1] => Array
    (
        [uid] => 3
    )

)

I want to compare two array ($array1,$array2). I hear array_diff is not good for my example. I need to create a function to compare this values ?

What I need is:

I have the following values in $array1 :

1
3

And following values in $array2 :

1
3

Now When I add a new value to $array2 called 4 , I need to see number 4 on screen, because 4 not exist in $array1.

Anyone help me a bit with a function?

Thank you very much !

[devinemke]

<?php
$array1 = array(
0 => 1,
1 => 3
);

$array2 = array(
0 => array('uid' => 1),
1 => array('uid' => 3),
2 => array('uid' => 4)
);

foreach ($array2 as $key => $value) {$array2[$key] = $value['uid'];}
$diff = array_diff($array2, $array1);
print_r($diff);