Check whether an array is empty in PHP

If you want to check whether an array is empty or not, you will need to use the fuction array_filter() before checking for emptiness. By default, an empty array still contains a null, 0, '' or false element. So if an array is empty in front of us, chances are that it is not empty inside php code. But array_filter() function is there to the rescue. array_filter() strips the array from null, 0, '' and false elements.

Suppose we have an array like $_FILES['file']['name'].
Then empty($FILES['file']['name']) returns false whether the array is empty or not.
So the work around is first use the function array_filter().
$result_array = array_filter($_FILES['file']['name'])
Now empty($result_array) returns true if the array is empty and false if the array is not empty.

Usage:

$result_array = array_filter($_FILES['file']['name']);

if(empty($result_array))

{

    //array is empty condition

}

else

{

    //array is not empty condition

}