If Iterator::valid() returns false, the foreach() loop will be terminated.
Iterator::valid
(PHP 5, PHP 7)
Iterator::valid — Checks if current position is valid
Opis
abstract public Iterator::valid
( void
) : bool
This method is called after Iterator::rewind() and Iterator::next() to check if the current position is valid.
Parametry
Ta funkcja nie posiada parametrów.
Zwracane wartości
The return value will be casted to boolean and then evaluated.
Zwraca TRUE w przypadku powodzenia, FALSE w
przypadku błędu.
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User Contributed Notes 2 notes
seva dot lapsha at gmail dot com ¶
14 years ago
Voitcus at gmail dot com ¶
11 years ago
If your class implements also ArrayAccess interface, you could use as valid() body
function valid(){
return $this->offsetExists($this->position);
}
