PHP array_filter: if array doesn't have my value return array without changes

Question

To filter an array by key value I do this

//$Myitems this is an array
$make = '3';
$MyfilterMain = array_filter($Myitems, function($Myitems) use($make) {
    $extra_fields_decode = json_decode($Myitems['extra_fields'], true);
    $main_value = $extra_fields_decode['1']['value'];
    return $main_value == $make;
})

Everything works correctly. But I want to make a condition: if my key value ($make) is not in the array, so that the array is returned without filtering. To return the original array $Myitems. Because next I want to do other things with it. I want to apply array_slice. Exemple:

$FirstItem = array_slice($Myitems, 0, 1);

To begin with, I tried to simply return the original array back like this. But it doesn't work.

$MyfilterMain = array_filter($Myitems, function($Myitems) use($make) {
    $extra_fields_decode = json_decode($Myitems['extra_fields'], true);
    $main_value = $extra_fields_decode['1']['value'];
    if ($main_value) {
        return $main_value == $make;
    } else {
        return $Myitems;
    }
})

How can this problem be solved?

Answer 1

Don't do this in the array_filter() callback. If $make is not in the array, the result of the filter will be an empty array. Check for that and use the original array instead.

$MyfilterMain = array_filter($Myitems, function($Myitems) use($make) {
    $extra_fields_decode = json_decode($Myitems['extra_fields'], true);
    $main_value = $extra_fields_decode['1']['value'];
    return $main_value == $make;
});
if (count($MyfilterMain) == 0) {
    $MyfilterMain = $Myitems;
}

Answer 2

An answer marked as correct is correct. But I decided to do a little on my own. That also works well.

$MyfilterMain = array_filter($Myitems, function($Myitems) use($make) {
    $extra_fields_decode = json_decode($Myitems['extra_fields'], true);
    $main_value = $extra_fields_decode['0']['value'];
        return $main_value == $make;
});
$MyFilterMainNext = $MyfilterMain ? $MyfilterMain : $Myitems;

In the template

<?php foreach($MyFilterMainNext as $mylist) : ?>
// Your data
<?php endforeach; ?>