PHP API Ref: Link Symfony namespace to GitHub

Author: adriendupuis

tools/php_api_ref/.phpdoc/template/class.html.twig

@@ -2,7 +2,7 @@
 
 {% block content %}
     {% include 'components/breadcrumbs.html.twig' %}
-    {% include 'components/class-title.html.twig' %}
+    {% include 'components/class-title.html.twig' with { symfony_version: '5.4' } %}
     {% include('components/element-header.html.twig') %}
     {% include 'components/constants.html.twig' %}
     {% include 'components/properties.html.twig' %}

tools/php_api_ref/.phpdoc/template/components/class-title.html.twig

@@ -10,7 +10,14 @@
     {% block subheader %}
         {% if node.parent %}
             <div class="content-header__subheader">
-                Extends {{ node.parent|route('class:short') }}
+                {% if node.parent.__toString starts with '\\Symfony\\' %}
+                    Extends
+                    <a href="{{ 'https://github.com/symfony/symfony/blob/' ~ symfony_version ~ '/src' ~ node.parent|replace({'\\': '/'}) ~ '.php' }}" class="external">
+                        <abbr title="{{ node.parent }}">{{ node.parent.name }}</abbr>
+                    </a>
+                {% else %}
+                    Extends {{ node.parent|route('class:short') }}
+                {% endif %}
             </div>
         {% endif %}