Manual do PHP Referência das Funções Outras Extensões Básicas SPL Interfaces Countable Interfaces Countable::count The Countable interface (PHP 5 >= 5.1.0) Introdução Classes implementing Countable can be used with the count() function. Resumo da Interface Countable { /* Métodos */ abstract public int count ( void ) } Table of ContentsCountable::count — Count elements of an object