[DomCrawler] Clarify the ways to add contents

javiereguiluz · javiereguiluz · commit a72ca1a11d0a · 2021-04-09T11:13:06.000+02:00
diff --git a/components/dom_crawler.rst b/components/dom_crawler.rst
@@ -292,7 +292,9 @@ context of the crawler::
 Adding the Content
 ~~~~~~~~~~~~~~~~~~
 
-The crawler supports multiple ways of adding the content::
+The crawler supports multiple ways of adding the content, but they are mutually
+exclusive, so you can only use one them to add content (e.g. if you pass the
+content to the ``Crawler`` constructor, you can't call ``addContent()`` later)::
 
     $crawler = new Crawler('<html><body/></html>');
 
