Dom\ParentNode::querySelector

(PHP 8 >= 8.4.0)

Dom\ParentNode::querySelector — Returns the first element that matches the CSS selectors

Description

public Dom\ParentNode::querySelector(string $selectors): ?Dom\Element

Returns the first element that matches the CSS selectors specified in selectors.

Parameters

selectors: A string containing one or more CSS selectors.

Return Values

Returns the first Dom\Element that matches selectors. Returns null if no element matches.

Errors/Exceptions

Throws a DOMException with code Dom\SYNTAX_ERR when selectors is not a valid CSS selector string.

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User Contributed Notes 1 note

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kawewong at gmail dot com ¶

6 hours ago

Even the document said "This is the modern, spec-compliant equivalent of DOMParentNode" but in DOMParentNode page there is no new methods like `querySelector()`.

To use this method you have to use new class.  
Example:

<?php
$html = <<<EOT
<div class="row">
    <div class="col"><h1 id="heading" class="col1-heading">Hello</h1></div>
    <div class="col"><p class="paragraph">Hello world.</p>
</div>
EOT;
$doc = \DOM\HTMLDocument::createFromString($html, LIBXML_HTML_NOIMPLIED);
$elem = $doc->querySelector('#heading');
echo $elem->getAttribute('class');// result is col1-heading
?>