symfony
diff --git a/‎src/Symfony/Component/DependencyInjection/Loader/XmlFileLoader.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/DependencyInjection/Loader/XmlFileLoader.php
+4Lines changed: 4 additions & 0 deletions b/‎src/Symfony/Component/DependencyInjection/Loader/XmlFileLoader.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/DependencyInjection/Loader/XmlFileLoader.php
+4Lines changed: 4 additions & 0 deletions
@@ -387,6 +387,10 @@ private function getArgumentsAsPhp(\DOMElement $node, $name, $lowercase = true)
                         $invalidBehavior = ContainerInterface::NULL_ON_INVALID_REFERENCE;
                     }
 
+                    if ($arg->hasAttribute('strict')) {
+                        @trigger_error(sprintf('The "strict" attribute used when referencing the "%s" service is deprecated since version 3.3 and will be removed in 4.0.', $arg->getAttribute('id')), E_USER_DEPRECATED);
+                    }
+
                     $arguments[$key] = new Reference($arg->getAttribute('id'), $invalidBehavior);
                     break;
                 case 'expression':