PHPCon Poland 2024

SimpleXMLElement::key

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SimpleXMLElement::keyReturn current key

Açıklama

public SimpleXMLElement::key(): string
Uyarı

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.

Bağımsız Değişkenler

Bu işlevin bağımsız değişkeni yoktur.

Dönen Değerler

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

Hatalar/İstisnalar

Throws an Error on failure.

Sürüm Bilgisi

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

Örnekler

Örnek 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());

?>

Yukarıdaki örneğin çıktısı:

bool(false)
string(4) "book"

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