In PHP, how do I filter arrays for beginners?

In PHP, filtering arrays can be done using various functions that allow you to keep only the values that meet certain criteria. One common way to filter arrays is by using the array_filter() function. This function takes an array and a callback function as arguments and returns a new array containing only the elements that pass the test implemented by the callback.

Here's a simple example of how to use array_filter() in PHP:


        $numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];

        // Filter even numbers
        $evenNumbers = array_filter($numbers, function($num) {
            return $num % 2 === 0;
        });

        print_r($evenNumbers); // Output: [2, 4, 6, 8, 10]