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    SimpleXMLElement::key

    (No version information available, might only be in Git)

    SimpleXMLElement::key — Return current key

    Descrição

    public SimpleXMLElement::key(): string
    Aviso

    Prior to PHP 8.0, SimpleXMLElement::key() was only declared on the subclass SimpleXMLIterator.

    This method gets the XML tag name of the current element.

    Parâmetros

    Esta função não possui parâmetros.

    Valor Retornado

    Returns the XML tag name of the element referenced by the current SimpleXMLElement object.

    Erros/Exceções

    Throws an Error on failure.

    Registro de Alterações

    Versão Descrição
    8.1.0 An Error is now thrown if SimpleXMLElement::key() is called on an invalid iterator. Previously, false was returned.

    Exemplos

    Exemplo #1 Get the current XML tag key

    <?php
    $xmlElement     = new SimpleXMLElement('<books><book>PHP basics</book><book>XML basics</book></books>');

    echo     var_dump($xmlElement->key());
    $xmlElement->rewind(); // rewind to the first element
    echo var_dump($xmlElement->key());

    ?>

    O exemplo acima produzirá:

    bool(false)
string(4) "book"

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