In PHP, how do I sort traits in vanilla PHP?

PHP, Sorting, Traits, usort, Custom Comparison

This example demonstrates how to sort an array of traits in PHP using the usort function with a custom comparison function.


        <?php
        trait TraitA {
            public function getValue() {
                return 5;
            }
        }

        trait TraitB {
            public function getValue() {
                return 10;
            }
        }

        $traits = [
            new class { use TraitA; },
            new class { use TraitB; },
        ];

        usort($traits, function($a, $b) {
            return $a->getValue() <=> $b->getValue();
        });

        foreach ($traits as $trait) {
            echo $trait->getValue() . "<br>";
        }
        ?>