feature symfony#18754 [DomCrawler] Added argument $default to method Crawler::attr() (alexandre-daubois)

This PR was merged into the 6.4 branch.

Discussion
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[DomCrawler] Added argument `$default` to method `Crawler::attr()`

Fix symfony#18753

Commits
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a2f361c [DomCrawler] Added argument $default to method Crawler::attr()

Author: OskarStark

components/dom_crawler.rst

@@ -238,6 +238,18 @@ Access the attribute value of the first node of the current selection::
 
     $class = $crawler->filterXPath('//body/p')->attr('class');
 
+.. tip::
+
+    You can define the default value to use if the node or attribute is empty
+    by using the second argument of the ``attr()`` method::
+
+        $class = $crawler->filterXPath('//body/p')->attr('class', 'my-default-class');
+
+    .. versionadded:: 6.4
+
+        The possibility to specify a default value to the ``attr()`` method
+        was introduced in Symfony 6.4.
+
 Extract attribute and/or node values from the list of nodes::
 
     $attributes = $crawler