PHP multidimensional array search by value

Question

I have an array where I want to search the uid and get the key of the array.

Examples

Assume we have the following 2-dimensional array:

<

Answer 1

Try this also

function search_in_array($srchvalue, $array)
{
    if (is_array($array) && count($array) > 0)
    {
        $foundkey = array_search($srchvalue, $array);
        if ($foundkey === FALSE)
        {
            foreach ($array as $key => $value)
            {
                if (is_array($value) && count($value) > 0)
                {
                    $foundkey = search_in_array($srchvalue, $value);
                    if ($foundkey != FALSE)
                        return $foundkey;
                }
            }
        }
        else
            return $foundkey;
    }
}