[edit] Last updated: Fri, 07 Jun 2013

La clase InfiniteIterator

(PHP 5 >= 5.1.0)

Introducción

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

Sinopsis de la Clase

InfiniteIterator extends IteratorIterator implements OuterIterator , Traversable , Iterator {

/* Métodos */

public __construct ( Iterator $iterator )

public void next ( void )

/* Métodos heredados */

public IteratorIterator::__construct ( Traversable $iterator )

public mixed IteratorIterator::current ( void )

public Traversable IteratorIterator::getInnerIterator ( void )

public scalar IteratorIterator::key ( void )

public void IteratorIterator::next ( void )

public void IteratorIterator::rewind ( void )

public bool IteratorIterator::valid ( void )

}

Tabla de contenidos

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

add a note User Contributed Notes InfiniteIterator - [2 notes]

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Anonymous ¶

8 months 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

down

vascowhite at gmail dot com ¶

14 days 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.

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