The LimitIterator class

(PHP 5 >= 5.1.0, PHP 7)

Introducere

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

Sinopsisul clasei

LimitIterator extends IteratorIterator implements OuterIterator {
/* Metode */
public __construct ( Iterator $iterator [, int $offset = 0 [, int $count = -1 ]] )
public current ( void ) : mixed
public getInnerIterator ( void ) : Iterator
public getPosition ( void ) : int
public key ( void ) : mixed
public next ( void ) : void
public rewind ( void ) : void
public seek ( int $position ) : int
public valid ( void ) : bool
}

Exemple

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);
}

?>

Exemplul de mai sus va afișa:

string(5) "apple"
string(6) "banana"
string(6) "cherry"

string(6) "cherry"
string(6) "damson"
string(10) "elderberry"

Cuprins