The InfiniteIterator class

(PHP 5 >= 5.1.0)

Вступ

The InfiniteIterator allows one to infinitely iterate over an iterator without having to manually rewind the iterator upon reaching its end.

Короткий Огляд Класа

InfiniteIterator extends IteratorIterator implements OuterIterator {

/* Методи */

public __construct ( Iterator $iterator )

public void next ( void )

/* Успадковані методи */

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 )

}

Зміст

InfiniteIterator::__construct — Constructs an InfiniteIterator
InfiniteIterator::next — Moves the inner Iterator forward or rewinds it

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User Contributed Notes 2 notes

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Anonymous ¶

11 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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vascowhite at gmail dot com ¶

10 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.

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