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The LimitIterator class


The LimitIterator class

(PHP 5 >= 5.1.0)

Introduction

The LimitIterator class allows iteration over a limited subset of items in an Iterator.

Class synopsis

LimitIterator extends IteratorIterator implements OuterIterator , Traversable , Iterator {
/* 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($fruits03) as $fruit) {
    
var_dump($fruit);
}

echo 
"\n";

// Loop from third fruit until the end
// Note: offset starts from zero for apple
foreach (new LimitIterator($fruits2) 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" 

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