An array is a kind of special variable / data structure, which can hold one or more similar type of values in a single value at a time. Suppose you have 200 numbers of items and you want to store them, so by defining a single array of 200
If we are working with the PHP array then there is some condition occurs when we want to remove the empty elements from an array. It is very easy and you can remove the empty elements of the array by using array_filter() without a callback function.