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

my solution:

function searchArrayForField($array, $field, $value) {
    $i = 0;
    foreach ($array as &$row) {
        if ($row[$field] === $value) {
            return $i;
        }
        $i++
    }
    return '';
}