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Iterator::valid

(PHP 5, PHP 7, PHP 8)

Iterator::validChecks if current position is valid

Descrição

abstract public Iterator::valid ( ) : bool

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

Parâmetros

Esta função não possui parâmetros.

Valor Retornado

The return value will be casted to bool and then evaluated. Retorna TRUE em caso de sucesso ou FALSE em caso de falha.

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User Contributed Notes 2 notes

up
10
seva dot lapsha at gmail dot com
11 years ago
If Iterator::valid() returns false, the foreach() loop will be terminated.
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5
Voitcus at gmail dot com
7 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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