In PHP object-oriented programming (OOP), inheritance means a class can only ever have a single parent, thus PHP is called a single inheritance language. Traits however give the ability for a class to inherit one or more sets of functions from different places and are a way around the single inheritance problem. Traits are sometimes referred to as mixins because they aren’t a class, more just a set of functions which get added to whatever uses that trait – and aren’t directly instanciab...
