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InfiniteIterator::__construct »

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La clase InfiniteIterator

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

Introducción

La clase InfiniteIterator permite recorrer un iterador de forma infinita sin tener que rebobinar manualmente el iterador al llegar a su final.

Sinopsis de la clase

class InfiniteIterator extends IteratorIterator {

/* Métodos */

public function __construct (Iterator $iterator)

public function next (): void

/* Métodos heredados */

public function IteratorIterator::current (): mixed

public function IteratorIterator::getInnerIterator (): ? Iterator

public function IteratorIterator::key (): mixed

public function IteratorIterator::next (): void

public function IteratorIterator::rewind (): void

public function IteratorIterator::valid (): bool

}

Tabla de contenidos

InfiniteIterator::__construct — Construye un InfiniteIterator
InfiniteIterator::next — Mueve el iterador interno hacía adelante o se rebobina

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User Contributed Notes 2 notes

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21

Anonymous ¶

13 years ago

to loop through object keys and reset to the start, try this:
<?php
$obj = new stdClass();
$obj->Mon = "Monday";
$obj->Tue = "Tuesday";
$obj->Wed = "Wednesday";
$obj->Thu = "Thursday";
$obj->Fri = "Friday";
$obj->Sat = "Saturday";
$obj->Sun = "Sunday";
$infinate = new InfiniteIterator(new ArrayIterator($obj));
foreach ( new LimitIterator($infinate, 0, 14) as $value ) {
 print($value . PHP_EOL);
}
?>

will output:
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Can be useful when doing date operations or recurring events

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13

vascowhite at gmail dot com ¶

13 years ago

It is important to realise that rewind() must be called on any iterator before using it or you may experience undefined behaviour, see example code and output here http://3v4l.org/rvNpU
See this bug report https://bugs.php.net/bug.php?id=63823&edit=2 for a fuller explanation.