diff --git a/controller/Controller.class.php b/controller/Controller.class.php
index e07e7422..8ccc81e8 100644
--- a/controller/Controller.class.php
+++ b/controller/Controller.class.php
@@ -97,6 +97,7 @@ class Controller
 
     $router->post('/postcommit', 'OpsActions::executePostCommit');
     $router->post('/log-upload', 'OpsActions::executeLogUpload');
+    $router->get('/clear-cache', 'OpsActions::executeClearCache');
 
     $router->any('/list/subscribe', 'MailActions::executeSubscribe');
     $router->any('/list/subscribed', 'MailActions::executeSubscribed');
diff --git a/controller/action/OpsActions.class.php b/controller/action/OpsActions.class.php
index b3508bbf..5214d10e 100644
--- a/controller/action/OpsActions.class.php
+++ b/controller/action/OpsActions.class.php
@@ -2,6 +2,20 @@
 
 class OpsActions extends Actions
 {
+  public static function executeClearCache(): array
+  {
+    if (!ini_get('apc.enabled') || !function_exists('apc_clear_cache'))
+    {
+      return View::renderJson(['success' => false, 'error' => 'Cache not enabled']);
+    }
+
+    apc_clear_cache();
+    apc_clear_cache('user');
+    apc_clear_cache('opcode');
+
+    return View::renderJson(['success' => true]);
+  }
+
   public static function executePostCommit(): array
   {
     $payload = Request::getParam('payload');
diff --git a/view/Response.class.php b/view/Response.class.php
index 14f91b22..0a5ef721 100644
--- a/view/Response.class.php
+++ b/view/Response.class.php
@@ -352,7 +352,7 @@ class Response
     return $statusTexts[$code] ?? null;
   }
 
-  protected static function normalizeHeaderName($name)
+  protected static function normalizeHeaderName($name): string
   {
     return preg_replace_callback(
       '/\-(.)/',
diff --git a/view/View.class.php b/view/View.class.php
index bca3bac2..cba1b22f 100644
--- a/view/View.class.php
+++ b/view/View.class.php
@@ -19,7 +19,7 @@ class View
   const CSS_DIR  = self::WEB_DIR . '/css';
   const JS_DIR   = self::WEB_DIR . '/js';
 
-  public static function render($template, array $vars = [])
+  public static function render($template, array $vars = []): string
   {
     if (static::isMarkdown($template))
     {
@@ -78,7 +78,7 @@ class View
     }
   }
 
-  public static function markdownToHtml($path)
+  public static function markdownToHtml($path): string
   {
     return ParsedownExtra::instance()->text(trim(file_get_contents($path)));
   }
@@ -154,7 +154,7 @@ class View
     }
   }
 
-  protected static function interpolateTokens($html)
+  protected static function interpolateTokens($html): string
   {
     return preg_replace_callback('/{{[\w\.]+}}/is', function ($m)
     {
@@ -162,12 +162,12 @@ class View
     }, $html);
   }
 
-  protected static function escapeOnce($value)
+  protected static function escapeOnce($value): string
   {
     return preg_replace('/&([a-z]+|(#\d+)|(#x[\da-f]+));/i', '&$1;', htmlspecialchars((string)$value, ENT_QUOTES, 'utf-8'));
   }
 
-  protected static function attributesToHtml($attributes)
+  protected static function attributesToHtml($attributes): string
   {
     return implode('', array_map(function ($k, $v)
     {
@@ -175,13 +175,19 @@ class View
     }, array_keys($attributes), array_values($attributes)));
   }
 
-  public static function renderTag($tag, $attributes = [])
+  public static function renderTag($tag, $attributes = []): string
   {
     return $tag ? sprintf('<%s%s />', $tag, static::attributesToHtml($attributes)) : '';
   }
 
-  public static function renderContentTag($tag, $content = null, $attributes = [])
+  public static function renderContentTag($tag, $content = null, $attributes = []): string
   {
     return $tag ? sprintf('<%s%s>%s</%s>', $tag, static::attributesToHtml($attributes), $content, $tag) : '';
   }
+
+  public static function renderJson($data): array
+  {
+    Response::setHeader(Response::HEADER_CONTENT_TYPE, 'application/json');
+    return ['internal/json', ['json' => $data, '_no_layout' => true]];
+  }
 }
\ No newline at end of file
diff --git a/view/template/internal/json.php b/view/template/internal/json.php
new file mode 100644
index 00000000..a03a649f
--- /dev/null
+++ b/view/template/internal/json.php
@@ -0,0 +1 @@
+<?php echo json_encode($json ?? [], JSON_PRETTY_PRINT) ?>
\ No newline at end of file