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    The LimitIterator class

    (PHP 5 >= 5.1.0, PHP 7, PHP 8)

    Einführung

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

    Klassenbeschreibung

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

    Beispiele

    Beispiel #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);
    }

    ?>

    Das oben gezeigte Beispiel erzeugt folgende Ausgabe: 

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

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

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