PHP Australia Conference 2015

The InfiniteIterator class

(PHP 5 >= 5.1.0)

Einführung

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

Klassenbeschreibung

InfiniteIterator extends IteratorIterator implements OuterIterator {
/* Methoden */
public __construct ( Iterator $iterator )
public void next ( void )
/* Geerbte Methoden */
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 )
}

Inhaltsverzeichnis

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User Contributed Notes 2 notes

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4
Anonymous
1 year 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
up
1
vascowhite at gmail dot com
1 year 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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