PHP: DOMAttr->isId() - Manual

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Last updated: Sat, 27 Jan 2007

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# DOMAttr->isId()

(no version information, might be only in CVS)

DOMAttr->isId() -- Checks if attribute is a defined ID

## Описание

class DOMAttr {
bool 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.

## Возвращаемые значения

Возвращает `TRUE` в случае успешного завершения или `FALSE` в случае возникновения ошибки.

## Примеры

Пример 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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DOMCharacterData->appendData() DOMAttr->__construct()

Last updated: Sat, 27 Jan 2007
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