How can one differentiate between an array and an object in PHP?

In PHP, one can differentiate between an array and an object by using the `is_array()` and `is_object()` functions. `is_array()` returns true if the variable is an array, while `is_object()` returns true if the variable is an object. This can be useful when working with different data types and needing to determine how to handle them in your code.

$data = [1, 2, 3]; // array
$person = new stdClass(); // object

if (is_array($data)) {
    echo "Data is an array";
} elseif (is_object($data)) {
    echo "Data is an object";
}

if (is_array($person)) {
    echo "Person is an array";
} elseif (is_object($person)) {
    echo "Person is an object";
}