LimitIterator (class)
The LimitIterator class
Introduction
(PHP 5 >= 5.1.0, PHP 7)
The LimitIterator class allows iteration over a limited subset of items in an Iterator.
Class synopsis
/* Methods */
public __construct ( Iterator $iterator [, int $offset = 0 [, int $count = -1 ]] )
public mixed current ( void )
public Iterator getInnerIterator ( void )
public int getPosition ( void )
public mixed key ( void )
public void next ( void )
public void rewind ( void )
public int seek ( int $position )
public bool valid ( void )}
Examples
Example #1 LimitIterator usage example
<?php
// Create an iterator to be limited
$fruits = new ArrayIterator(array(
'apple',
'banana',
'cherry',
'damson',
'elderberry'
));
// Loop over first three fruits only
foreach (new LimitIterator($fruits, 0, 3) as $fruit) {
var_dump($fruit);
}
echo "\n";
// Loop from third fruit until the end
// Note: offset starts from zero for apple
foreach (new LimitIterator($fruits, 2) as $fruit) {
var_dump($fruit);
}
?> The above example will output:
string(5) "apple" string(6) "banana" string(6) "cherry" string(6) "cherry" string(6) "damson" string(10) "elderberry"
Table of Contents
- LimitIterator::__construct — Construct a LimitIterator
- LimitIterator::current — Get current element
- LimitIterator::getInnerIterator — Get inner iterator
- LimitIterator::getPosition — Return the current position
- LimitIterator::key — Get current key
- LimitIterator::next — Move the iterator forward
- LimitIterator::rewind — Rewind the iterator to the specified starting offset
- LimitIterator::seek — Seek to the given position
- LimitIterator::valid — Check whether the current element is valid
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Licensed under the Creative Commons Attribution License v3.0 or later.
https://secure.php.net/manual/en/class.limititerator.php
