在数组中搜索并找到几个键

Question

public function array_searchh($needle, $haystack) {
    foreach ($haystack as $key => $value) {
        $current_key = '';
        $current_key .= $key;
        if ($needle === $value OR (is_array($value) && $this->array_searchh($needle, $value) !== false)) {
            return $current_key;
        }
    }
    return false;
}

When I search in array return first key, but I want to search and if there same value return all keys.

[0] => Array ([id] => 1[value] => payamm)
[1] => Array ([id] =>2[value]=>payam)
[2] => Array ([id] => 25[value] => payam)
[3] => Array ([id] => 3[value] => payam)
[4] => Array ([id] => 4[value] => payam)
[5] => Array ([id] => 5[value] => 340) 

In above array, I have several "payam" values. When I use above function, I just return the first (found) key but I want all matching keys.

Answer 1

public function array_searchh($needle, $haystack) {
    foreach ($haystack as $key => $value) {
        $current_key = '';
        $current_key .= $key;
        if ($needle === $value OR (is_array($value) && $this->array_searchh($needle, $value) !== false)) {
            $foundKeys[] = $current_key;
        }
    }
    if (isset($foundKeys)) {
        return $foundKeys;
    }
    return false;
}

This should return an array of all the found keys.