PHP 8.0.6 Released!

IteratorIterator::valid

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

IteratorIterator::validChecks if the iterator is valid

Beschreibung

public IteratorIterator::valid ( ) : bool

Checks if the iterator is valid.

Parameter-Liste

Diese Funktion besitzt keine Parameter.

R├╝ckgabewerte

Returns true if the iterator is valid, otherwise false

Siehe auch

add a note add a note

User Contributed Notes 1 note

up
2
mike at eastghost dot com
3 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()
To Top