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

IteratorIterator::valid — Checks if the current element is valid

Description

public IteratorIterator::valid(): bool

Checks whether the current element is valid.

Parameters

This function has no parameters.

Return Values

Returns true if the current element is valid, otherwise false

See Also

• iterator_count() - Count the elements in an iterator
• IteratorIterator::current() - Get the current value

An Iterator is "valid" when it has additional elements, beyond its element index.

Said another way: After an Iterator is next()'d to its final element, the Iterator is no longer "valid".

Said another way: A "hasNext" check would simply return ::valid()