How do I check if array value is empty?

Question

Here is my array ouput

Array
(
    [1] => 1
    [2] => 2
    [3] =>  
)

How do I know the [3] => is empty?

Answer 1

You can check for an empty array by using the following:

if ( !empty(array_filter($array))) {
    echo 'OK';
} else {
    echo 'EMPTY ARRAY';
}