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    A classe LimitIterator

    Introdução

    ...

    Sinopse da classe

    class LimitIterator extends IteratorIterator implements OuterIterator, Traversable, Iterator {
    /* Métodos */
    public current(): mixed
    getPosition(): int
    public key(): mixed
    next(): void
    rewind(): void
    seek(int $position): void
    valid(): bool
    }

    Exemplos

    Exemplo #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);
    }

    ?>

    O exemplo acima produzirá:

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

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

    Índice

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    User Contributed Notes 1 note

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    christophg at grenz-bonn dot de
    1 year ago
    If the inner iterator implements SeekableIterator, LimitIterator uses seek() after rewind() to move to the offset.
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