CascadiaPHP 2024


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

IteratorIterator::validChecks if the current element is valid


public IteratorIterator::valid(): bool

Checks whether the current element is valid.


This function has no parameters.

Return Values

Returns true if the current element is valid, otherwise false

See Also

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User Contributed Notes 1 note

mike at eastghost dot com
6 years ago
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()
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