PHP 8.4.2 Released!

    The Countable interface

    (PHP 5 >= 5.1.0, PHP 7, PHP 8)

    Вступ

    Classes implementing Countable can be used with the count() function.

    Короткий огляд iнтерфейcу

    interface Countable {
    /* Методи */
    public count(): int
    }

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