Bug #16647 Updated: DomDocument->get_element_by_id() doesn't work

ID: 16647 Updated by: chregu@php.net Reported By: s.li@gmx.de -Status: Analyzed +Status: Closed Bug Type: DOM XML related Operating System: linux 2.4.4 PHP Version: 4.0CVS-2002-04-1 New Comment: Thank you for your bug report. This issue has already been fixed in the latest released version of PHP, which you can download at http://www.php.net/downloads.php Previous Comments: ------------------------------------------------------------------------ [2002-04-18 10:10:58] s.li@gmx.de Quote from the Document Object Model (DOM) Level 2 Core Specification: Attributes with the name "ID" are not of type ID unless so defined. Implementations that do not know whether attributes are of type ID or not are expected to return null. That means that DomDocument->get_document_by_id("X") and XPathContext->xpath_eval("//*[@id='X']) are not equivalent and that the former function should only return a result if a DTD is referenced which declares attributes of type ID. ------------------------------------------------------------------------ [2002-04-18 07:44:04] chregu@php.net Ooop. didn't much think about case sensitivity back then :) A quick soultion would be: "//*[@ID = '%s' or @id = '%s']". I don't know, which version is really correct according to W3C (but anyways, the ID-attribute should be stated in the DTD, so this whole xpath-approach is actually rather wrong :) ) chregu ------------------------------------------------------------------------ [2002-04-18 01:37:04] steinm@php.net get_element_by_id() used xpath_eval as well but searches for "//*[@ID = '%s']". If you capitalize the id it should work. Do you have an idea how to search case insensitve? ------------------------------------------------------------------------ [2002-04-16 20:04:48] s.li@gmx.de The following script returns bool(false): <?php $src = <<< _END <html> <head><title> Test </title></head> <body> <h1>Test</h1> <span id="test">Foo</span> </body> </html> _END; $doc = domxml_open_mem($src); $n = $doc->get_element_by_id("test"); var_dump($n); ?> Workaround: Use Xpath expressions to find the node: <?php $src = <<< _END <html> <head><title> Test </title></head> <body> <h1>Test</h1> <span id="test">Foo</span> </body> </html> _END; $doc = domxml_open_mem($src); $ctx = $doc->xpath_new_context(); $res = $ctx->xpath_eval("//*[@id='test']"); $n = $res->nodeset[0]; var_dump($n); ?> ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=16647&edit=1