Iterator::valid

(PHP 5, PHP 7, PHP 8)

Iterator::valid — Checks if current position is valid

Descrizione

public Iterator::valid(): bool

This method is called after Iterator::rewind() and Iterator::next() to check if the current position is valid.

Elenco dei parametri

Questa funzione non contiene parametri.

Valori restituiti

The return value will be casted to bool and then evaluated. Restituisce true in caso di successo, false in caso di fallimento.

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User Contributed Notes 2 notes

down

seva dot lapsha at gmail dot com ¶

15 years ago

If Iterator::valid() returns false, the foreach() loop will be terminated.

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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);
}

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