Undefined method 'getAttribute'.

[juanyves]

Intelephense doesn't recognize the getAttribute method for a DOM object

To Reproduce

<?php $html = "<figure class='thumbnail '><span class='ACrL3ZACrpZGVvL3BsYXllcl9nZW5fY21lZGlhPTE5NDM2NzcwJmNmaWxtPTkyODYuaHRtbA== thumbnail-container thumbnail-link' title='xxxxxxxx'><img class='thumbnail-img' src='http://site.com/path/xxxx.jpg' alt='xxxxxx' width='216' height='288' /></span></figure>?>";

$dom = new DOMDocument;
$dom->loadHTML($html);
$xpath = new DOMXPath($dom);
$src = $xpath->query("//*[@class='thumbnail-img']")->item(0)->getAttribute('src');

{
"resource": "/path/test5.php",
"owner": "generated_diagnostic_collection_name#2",
"code": "1013",
"severity": 8,
"message": "Undefined method 'getAttribute'.",
"source": "intelephense",
"startLineNumber": 30,
"startColumn": 67,
"endLineNumber": 30,
"endColumn": 79
}

Platform and version
win10

[KapitanOczywisty]

By documentation: DOMXPath->query() returns DOMNodeList and DOMNodeList->item() returns DOMNode which doesn't have getAttribute. Sometimes that DOMNode is DOMElement, but this cannot be hardcoded in every case.

Possible solutions:

A) Get src directly

$src = $xpath->evaluate("string(//*[@class='thumbnail-img']/@src)");

B) Force type with phpdoc

/** @var DOMElement $element */
$element = $xpath->query("//*[@class='thumbnail-img']")->item(0);
$src = $element->getAttribute('src');

C) Add .phpstorm.meta.php file somewhere in workspace. With that all DOMNodeList->item() will show DOMElement as returned type

<?php
namespace PHPSTORM_META {
  override(\DOMNodeList::item(0), map(['' => \DOMElement::class]));
}

[bmewburn]

Closing, this is working as designed.