MultipleIterator::valid

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

MultipleIterator::valid — Checks the validity of sub iterators

说明

Checks the validity of sub iterators.

参数

此函数没有参数。

返回值

Returns true if one or all sub iterators are valid depending on flags, otherwise false

参见

• MultipleIterator::__construct() - Constructs a new MultipleIterator