PHP Dokumentation: Domattr isid
12. Januar 2010 von werner
DOMAttr::isId
(PHP 5)
DOMAttr::isId — Checks if attribute is a defined ID
Beschreibung
bool DOMAttr::isId ( void )
This function checks if the attribute is a defined ID.
According to the DOM standard this requires a DTD which defines the attribute ID to be of type ID. You need to validate your document with DOMDocument::validate or DOMDocument::validateOnParse before using this function.
Rückgabewerte
Gibt bei Erfolg TRUE zurück. Im Fehlerfall wird FALSE zurückgegeben.
Beispiele
Beispiel #1 DOMAttr->isId() Example
<?php$doc
= new DomDocument;// We need to validate our document before refering to the id
$doc->validateOnParse = true;
$doc->Load('book.xml');// We retrieve the attribute named id of the chapter element
$attr = $doc->getElementsByTagName('chapter')->item(0)->getAttributeNode('id');var_dump($attr->isId()); // bool(true)?>
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