DOMCharacterData::before

(PHP 8)

DOMCharacterData::beforeAdds nodes before the node

Descrizione

public DOMCharacterData::before(DOMNode|string ...$nodes): void

Adds the passed nodes before the node.

Elenco dei parametri

nodes

Nodes to be added before the node. Strings are automatically converted to text nodes.

Valori restituiti

Nessun valore viene restituito.

Errori/Eccezioni

DOM_HIERARCHY_REQUEST_ERR

Raised if the parent is of a type that does not allow children of the type of one of the passed nodes, or if the node to put in is one of this node's ancestors or this node itself.

DOM_WRONG_DOCUMENT_ERR

Raised if one of the passed nodes was created from a different document than the one that created this node.

Log delle modifiche

Versione Descrizione
8.3.0 Calling this method on a node without a parent is now a no-op to align the behaviour with the DOM specification. Previously this threw a DOMException with code DOM_HIERARCHY_REQUEST_ERR.

Esempi

Example #1 DOMCharacterData::before() example

Adds nodes before the character data.

<?php
$doc
= new DOMDocument;
$doc->loadXML("<container><![CDATA[world]]></container>");
$cdata = $doc->documentElement->firstChild;

$cdata->before("hello", $doc->createElement("beautiful"));

echo
$doc->saveXML();
?>

Il precedente esempio visualizzerĂ :

<?xml version="1.0"?>
<container>hello<beautiful/><![CDATA[world]]></container>

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