Iterator
PHP Manual

Iterator::valid

(PHP 5 >= 5.1.0)

Iterator::validChecks if current position is valid

Описание

abstract public boolean Iterator::valid ( void )

This method is called after Iterator::rewind and Iterator::next to check if the current position is valid.

Параметри

Тази функция няма параметри.

Връщани стойности

The return value will be casted to boolean and then evaluated. Връща TRUE при успех или FALSE при неуспех.


Iterator
PHP Manual